1 Sample Information

The table below contains the information on the sample equivalents from nanostring and affymetrix data, seven samples present in the nanostring data set are missing from the microarray study: MON146, MON183, MON264, MON346, MON354, MON370, MON498.

2 Read and normalize nanostring data

## Background correcting
## Normalizing
## Calculating Expression

3 Read and normalize Affymetrix data

4 Study Groups

After normalizing the data sets, the samples were divided into Rejection (n = 22) versus Non-Rejection (n = 23) classes for further analysis.

4.1 Exploratory Data Analysis

4.1.1 Nanostring

4.1.2 Affymetrix

5 Differential expression

5.1 Nanostring

5.2 Affymetrix

6 Limma Romer Analysis of PBTs

6.1 Nanostring

6.2 Affymetrix

7 Model selection using Akaike information criterion

7.1 Nanostring

7.1.1 Full model

7.1.2 AIC stepwise model selection

## Start:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP + TBC1D10B + TBP + UBB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP + TBC1D10B + TBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP + TBC1D10B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - AGR2      1 2.7005e-10  88
## - AIRE      1 2.7121e-10  88
## - ADAM8     1 2.7144e-10  88
## - ATF3      1 2.7146e-10  88
## - ACKR1     1 2.7149e-10  88
## - ANXA1     1 2.7150e-10  88
## - ABCB1     1 2.7155e-10  88
## - ABCE1     1 2.7158e-10  88
## - AGR3      1 2.7158e-10  88
## - ANKRD22   1 2.7159e-10  88
## - APOL2     1 2.7159e-10  88
## - ALOX15    1 2.7161e-10  88
## - APOE      1 2.7161e-10  88
## - ACVR1     1 2.7167e-10  88
## - AIM2      1 2.7167e-10  88
## - APOLD1    1 2.7166e-10  88
## - AQP1      1 2.7168e-10  88
## - ASB15     1 2.7168e-10  88
## - ACTA2     1 2.7170e-10  88
## - ACVRL1    1 2.7170e-10  88
## - ARHGDIB   1 2.7170e-10  88
## - AOAH      1 2.7172e-10  88
## - ABCA1     1 2.7173e-10  88
## - ADGRL4    1 2.7173e-10  88
## - ATM       1 2.7173e-10  88
## - ATXN3     1 2.7173e-10  88
## - AKR1C3    1 2.7174e-10  88
## - AGER      1 2.7176e-10  88
## - ALOX5     1 2.7176e-10  88
## - AICDA     1 2.7177e-10  88
## - ARG1      1 2.7177e-10  88
## - ADAMTS1   1 2.7179e-10  88
## - AGT       1 2.7179e-10  88
## - ALAS1     1 2.7179e-10  88
## - ARRB2     1 2.7182e-10  88
## - ABCC2     1 2.7184e-10  88
## - APOL1     1 2.7184e-10  88
## - AQP2      1 2.7186e-10  88
## - AHR       1 2.7189e-10  88
## - ARG2      1 2.7191e-10  88
## - ADAMDEC1  1 2.7192e-10  88
## - ALDH3A2   1 2.7194e-10  88
## - ANKRD1    1 2.7201e-10  88
## - AREG      1 2.7214e-10  88
## <none>        2.6107e-10  90
## 
## Step:  AIC=88
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR3 + 
##     AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + 
##     APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + 
##     ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - AIRE      1 2.7774e-10  86
## - ADAM8     1 2.8116e-10  86
## - ABCB1     1 2.8127e-10  86
## - ATF3      1 2.8192e-10  86
## - AGR3      1 2.8199e-10  86
## - ACKR1     1 2.8226e-10  86
## - APOL2     1 2.8257e-10  86
## - ANXA1     1 2.8273e-10  86
## - APOE      1 2.8308e-10  86
## - ALOX15    1 2.8342e-10  86
## - ATXN3     1 2.8347e-10  86
## - ABCE1     1 2.8356e-10  86
## - ANKRD22   1 2.8389e-10  86
## - ARHGDIB   1 2.8438e-10  86
## - ACVR1     1 2.8454e-10  86
## - AIM2      1 2.8467e-10  86
## - ASB15     1 2.8467e-10  86
## - ABCA1     1 2.8483e-10  86
## - ACVRL1    1 2.8489e-10  86
## - AQP1      1 2.8497e-10  86
## - ACTA2     1 2.8511e-10  86
## - ALOX5     1 2.8512e-10  86
## - ATM       1 2.8514e-10  86
## - APOLD1    1 2.8516e-10  86
## - AKR1C3    1 2.8530e-10  86
## - ADGRL4    1 2.8532e-10  86
## - AGT       1 2.8534e-10  86
## - AOAH      1 2.8539e-10  86
## - ADAMTS1   1 2.8556e-10  86
## - ABCC2     1 2.8590e-10  86
## - ALAS1     1 2.8598e-10  86
## - AGER      1 2.8613e-10  86
## - ARG1      1 2.8617e-10  86
## - ARRB2     1 2.8617e-10  86
## - AHR       1 2.8621e-10  86
## - AICDA     1 2.8624e-10  86
## - ARG2      1 2.8629e-10  86
## - APOL1     1 2.8684e-10  86
## - AQP2      1 2.8695e-10  86
## - ALDH3A2   1 2.8715e-10  86
## - ADAMDEC1  1 2.8751e-10  86
## - ANKRD1    1 2.9051e-10  86
## - AREG      1 2.9451e-10  86
## <none>        2.7005e-10  88
## 
## Step:  AIC=86
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR3 + 
##     AGT + AHR + AICDA + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + APOL1 + 
##     APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - ABCB1     1 2.9395e-10  84
## - ACKR1     1 2.9432e-10  84
## - ATF3      1 2.9509e-10  84
## - AGR3      1 2.9541e-10  84
## - APOE      1 3.0009e-10  84
## - ACVR1     1 3.0261e-10  84
## - ABCE1     1 3.0352e-10  84
## - ATXN3     1 3.0353e-10  84
## - APOL2     1 3.0605e-10  84
## - APOLD1    1 3.0737e-10  84
## - ALOX15    1 3.0794e-10  84
## - ANKRD22   1 3.0881e-10  84
## - AIM2      1 3.0906e-10  84
## - ANXA1     1 3.0920e-10  84
## - ACTA2     1 3.0969e-10  84
## - ASB15     1 3.1380e-10  84
## - AGT       1 3.1393e-10  84
## - ADAM8     1 3.1397e-10  84
## - ARG2      1 3.1462e-10  84
## - ARHGDIB   1 3.1529e-10  84
## - ABCA1     1 3.1549e-10  84
## - ALOX5     1 3.1571e-10  84
## - ADGRL4    1 3.1761e-10  84
## - ACVRL1    1 3.1792e-10  84
## - AICDA     1 3.1830e-10  84
## - ARG1      1 3.1829e-10  84
## - ALAS1     1 3.1900e-10  84
## - AKR1C3    1 3.2002e-10  84
## - AQP1      1 3.2056e-10  84
## - ATM       1 3.2097e-10  84
## - ABCC2     1 3.2113e-10  84
## - AOAH      1 3.2183e-10  84
## - AQP2      1 3.2281e-10  84
## - APOL1     1 3.2351e-10  84
## - ADAMTS1   1 3.2599e-10  84
## - AGER      1 3.2637e-10  84
## - ADAMDEC1  1 3.2664e-10  84
## - AHR       1 3.2715e-10  84
## - ARRB2     1 3.2777e-10  84
## - ALDH3A2   1 3.2918e-10  84
## - AREG      1 3.3829e-10  84
## - ANKRD1    1 3.4073e-10  84
## <none>        2.7774e-10  86
## 
## Step:  AIC=84
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR3 + AGT + 
##     AHR + AICDA + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + APOL1 + 
##     APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - ATF3      1 2.9685e-10  82
## - ACKR1     1 2.9731e-10  82
## - AGR3      1 2.9735e-10  82
## - APOE      1 3.0317e-10  82
## - ATXN3     1 3.0906e-10  82
## - ACVR1     1 3.0960e-10  82
## - ABCE1     1 3.1203e-10  82
## - ANXA1     1 3.1567e-10  82
## - ADAM8     1 3.1650e-10  82
## - APOL2     1 3.1917e-10  82
## - APOLD1    1 3.1942e-10  82
## - ANKRD22   1 3.1953e-10  82
## - AIM2      1 3.2182e-10  82
## - ALOX15    1 3.2391e-10  82
## - ACTA2     1 3.2401e-10  82
## - ASB15     1 3.3035e-10  82
## - ARHGDIB   1 3.3546e-10  82
## - AICDA     1 3.3735e-10  82
## - ACVRL1    1 3.3975e-10  82
## - ABCA1     1 3.4028e-10  82
## - ARG2      1 3.4044e-10  82
## - AGT       1 3.4228e-10  82
## - ALAS1     1 3.4344e-10  82
## - ADGRL4    1 3.4391e-10  82
## - ATM       1 3.4459e-10  82
## - ALOX5     1 3.4466e-10  82
## - AQP1      1 3.4638e-10  82
## - ARG1      1 3.5135e-10  82
## - AKR1C3    1 3.5174e-10  82
## - AOAH      1 3.5611e-10  82
## - APOL1     1 3.5710e-10  82
## - AQP2      1 3.6214e-10  82
## - ARRB2     1 3.6382e-10  82
## - AGER      1 3.6565e-10  82
## - ADAMTS1   1 3.7104e-10  82
## - ABCC2     1 3.7299e-10  82
## - AREG      1 3.7760e-10  82
## - ANKRD1    1 3.8342e-10  82
## - AHR       1 3.8396e-10  82
## - ADAMDEC1  1 3.9346e-10  82
## - ALDH3A2   1 3.9420e-10  82
## <none>        2.9395e-10  84
## 
## Step:  AIC=82
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR3 + AGT + 
##     AHR + AICDA + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + APOL1 + 
##     APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - AGR3      1 2.9738e-10  80
## - ACKR1     1 2.9808e-10  80
## - APOE      1 3.1320e-10  80
## - ADAM8     1 3.1826e-10  80
## - ANXA1     1 3.2076e-10  80
## - ATXN3     1 3.2931e-10  80
## - APOL2     1 3.3366e-10  80
## - ABCE1     1 3.5084e-10  80
## - ACVR1     1 3.6378e-10  80
## - APOLD1    1 3.6431e-10  80
## - ARG2      1 3.9201e-10  80
## - ACTA2     1 3.9374e-10  80
## - AIM2      1 3.9450e-10  80
## - ASB15     1 3.9886e-10  80
## - ABCA1     1 4.2793e-10  80
## - ABCC2     1 4.3366e-10  80
## - ARG1      1 4.3697e-10  80
## - ALOX15    1 4.3810e-10  80
## - AGT       1 4.5136e-10  80
## - ANKRD22   1 4.5727e-10  80
## - AICDA     1 4.5962e-10  80
## - ALAS1     1 4.6150e-10  80
## - APOL1     1 4.6154e-10  80
## - ARHGDIB   1 4.7243e-10  80
## - AGER      1 4.7731e-10  80
## - AQP1      1 4.8596e-10  80
## - ATM       1 4.8685e-10  80
## - ARRB2     1 4.8808e-10  80
## - AHR       1 4.8953e-10  80
## - AKR1C3    1 4.9028e-10  80
## - ACVRL1    1 4.9045e-10  80
## - ALDH3A2   1 4.9702e-10  80
## - AREG      1 4.9706e-10  80
## - AQP2      1 4.9884e-10  80
## - ALOX5     1 5.0912e-10  80
## - ADGRL4    1 5.0914e-10  80
## - ANKRD1    1 5.0982e-10  80
## - ADAMTS1   1 5.1067e-10  80
## - AOAH      1 5.1104e-10  80
## - ADAMDEC1  1 5.4090e-10  80
## <none>        2.9685e-10  82
## 
## Step:  AIC=80
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGT + AHR + 
##     AICDA + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + 
##     ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + APOL1 + APOL2 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + 
##     ASB15 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - ACKR1     1 2.9845e-10  78
## - APOE      1 3.1399e-10  78
## - ANXA1     1 3.2398e-10  78
## - ADAM8     1 3.2424e-10  78
## - ATXN3     1 3.2925e-10  78
## - APOL2     1 3.4041e-10  78
## - ABCE1     1 3.5924e-10  78
## - ACVR1     1 3.6456e-10  78
## - APOLD1    1 3.9184e-10  78
## - ARG2      1 4.0914e-10  78
## - AIM2      1 4.0934e-10  78
## - ASB15     1 4.1702e-10  78
## - ACTA2     1 4.2447e-10  78
## - ABCC2     1 4.3744e-10  78
## - ARG1      1 4.3850e-10  78
## - ALOX15    1 4.5227e-10  78
## - ANKRD22   1 4.5751e-10  78
## - AICDA     1 4.6201e-10  78
## - AGER      1 4.8085e-10  78
## - ABCA1     1 4.9656e-10  78
## - ATM       1 4.9707e-10  78
## - AREG      1 5.0808e-10  78
## - ARHGDIB   1 5.0883e-10  78
## - AQP1      1 5.1000e-10  78
## - AOAH      1 5.1971e-10  78
## - ADAMTS1   1 5.2022e-10  78
## - AKR1C3    1 5.2274e-10  78
## - ALDH3A2   1 5.2436e-10  78
## - APOL1     1 5.2492e-10  78
## - AHR       1 5.5120e-10  78
## - AGT       1 5.5236e-10  78
## - ADGRL4    1 5.6297e-10  78
## - ALOX5     1 5.6457e-10  78
## - ACVRL1    1 5.6472e-10  78
## - ALAS1     1 5.7502e-10  78
## - ADAMDEC1  1 5.7693e-10  78
## - AQP2      1 5.8864e-10  78
## - ANKRD1    1 5.9623e-10  78
## - ARRB2     1 6.5567e-10  78
## <none>        2.9738e-10  80
## 
## Step:  AIC=78
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAM8 + 
##     ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGT + AHR + AICDA + 
##     AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + ANXA1 + AOAH + APOE + APOL1 + APOL2 + APOLD1 + 
##     AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ASB15 + 
##     ATM + ATXN3
## 
##            Df   Deviance AIC
## - APOE      1 3.1412e-10  76
## - ADAM8     1 3.2621e-10  76
## - ANXA1     1 3.2649e-10  76
## - ATXN3     1 3.2972e-10  76
## - APOL2     1 3.4463e-10  76
## - ABCE1     1 3.6152e-10  76
## - ACVR1     1 3.6546e-10  76
## - APOLD1    1 3.9431e-10  76
## - ASB15     1 4.1929e-10  76
## - ARG2      1 4.2161e-10  76
## - ACTA2     1 4.2893e-10  76
## - AIM2      1 4.4207e-10  76
## - ARG1      1 4.4417e-10  76
## - ABCC2     1 4.4837e-10  76
## - ALOX15    1 4.5491e-10  76
## - ANKRD22   1 4.6033e-10  76
## - AICDA     1 4.6577e-10  76
## - AGER      1 4.9774e-10  76
## - AREG      1 5.1123e-10  76
## - ATM       1 5.1279e-10  76
## - ABCA1     1 5.1962e-10  76
## - AOAH      1 5.2129e-10  76
## - ALDH3A2   1 5.2797e-10  76
## - AQP1      1 5.3595e-10  76
## - AKR1C3    1 5.4637e-10  76
## - ADAMTS1   1 5.5363e-10  76
## - ADGRL4    1 5.6407e-10  76
## - AHR       1 5.7104e-10  76
## - ADAMDEC1  1 5.7906e-10  76
## - APOL1     1 5.9026e-10  76
## - AGT       1 5.9163e-10  76
## - ALOX5     1 5.9166e-10  76
## - ALAS1     1 5.9385e-10  76
## - ACVRL1    1 5.9852e-10  76
## - AQP2      1 6.0081e-10  76
## - ARHGDIB   1 7.1846e-10  76
## - ANKRD1    1 7.5345e-10  76
## - ARRB2     1 7.9145e-10  76
## <none>        2.9845e-10  78
## 
## Step:  AIC=76
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAM8 + 
##     ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGT + AHR + AICDA + 
##     AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + ANXA1 + AOAH + APOL1 + APOL2 + APOLD1 + AQP1 + 
##     AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATM + 
##     ATXN3
## 
##            Df   Deviance AIC
## - ATXN3     1 3.3088e-10  74
## - ANXA1     1 3.3172e-10  74
## - ADAM8     1 3.4259e-10  74
## - APOL2     1 3.4829e-10  74
## - ABCE1     1 3.6670e-10  74
## - ACVR1     1 3.7447e-10  74
## - APOLD1    1 4.0733e-10  74
## - ASB15     1 4.2931e-10  74
## - ACTA2     1 4.3371e-10  74
## - AIM2      1 4.5865e-10  74
## - ARG2      1 4.6441e-10  74
## - ALOX15    1 4.6721e-10  74
## - AICDA     1 4.7141e-10  74
## - ABCC2     1 5.0760e-10  74
## - ANKRD22   1 5.0954e-10  74
## - AREG      1 5.1769e-10  74
## - ARG1      1 5.2141e-10  74
## - AQP1      1 5.4961e-10  74
## - AGER      1 5.7596e-10  74
## - AOAH      1 5.7756e-10  74
## - ADAMTS1   1 5.8783e-10  74
## - ABCA1     1 6.0533e-10  74
## - AKR1C3    1 6.1842e-10  74
## - ATM       1 6.3628e-10  74
## - ADGRL4    1 6.6996e-10  74
## - ALDH3A2   1 6.8177e-10  74
## - ACVRL1    1 6.9013e-10  74
## - AGT       1 6.9734e-10  74
## - AHR       1 6.9858e-10  74
## - ALAS1     1 7.0170e-10  74
## - APOL1     1 7.0873e-10  74
## - ADAMDEC1  1 7.0918e-10  74
## - ARHGDIB   1 7.5214e-10  74
## - AQP2      1 7.8490e-10  74
## - ANKRD1    1 8.3479e-10  74
## - ARRB2     1 8.9561e-10  74
## - ALOX5     1 9.9651e-10  74
## <none>        3.1412e-10  76
## 
## Step:  AIC=74
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAM8 + 
##     ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGT + AHR + AICDA + 
##     AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + ANXA1 + AOAH + APOL1 + APOL2 + APOLD1 + AQP1 + 
##     AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATM
## 
##            Df   Deviance AIC
## - ADAM8     1 3.4988e-10  72
## - APOL2     1 3.5434e-10  72
## - ANXA1     1 3.5582e-10  72
## - ACVR1     1 3.7805e-10  72
## - ABCE1     1 4.0164e-10  72
## - ASB15     1 4.3288e-10  72
## - ARG2      1 4.6837e-10  72
## - AIM2      1 4.6990e-10  72
## - APOLD1    1 4.7367e-10  72
## - ALOX15    1 4.8579e-10  72
## - ARG1      1 5.2364e-10  72
## - ACTA2     1 5.3504e-10  72
## - AICDA     1 5.4129e-10  72
## - ABCC2     1 5.4643e-10  72
## - AREG      1 5.9967e-10  72
## - AOAH      1 6.2010e-10  72
## - ANKRD22   1 6.2773e-10  72
## - ADAMTS1   1 6.3634e-10  72
## - ABCA1     1 6.4411e-10  72
## - AGER      1 6.4882e-10  72
## - ADGRL4    1 6.7544e-10  72
## - ALDH3A2   1 6.8405e-10  72
## - ATM       1 6.8494e-10  72
## - AHR       1 7.0528e-10  72
## - AKR1C3    1 7.0721e-10  72
## - APOL1     1 7.1221e-10  72
## - ADAMDEC1  1 7.1276e-10  72
## - ACVRL1    1 7.3210e-10  72
## - ALAS1     1 7.3728e-10  72
## - AQP1      1 7.5654e-10  72
## - AGT       1 7.5947e-10  72
## - ARHGDIB   1 7.7468e-10  72
## - AQP2      1 7.9456e-10  72
## - ANKRD1    1 9.0489e-10  72
## - ALOX5     1 1.0240e-09  72
## - ARRB2     1 1.1841e-09  72
## <none>        3.3088e-10  74
## 
## Step:  AIC=72
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAMDEC1 + 
##     ADAMTS1 + ADGRL4 + AGER + AGT + AHR + AICDA + AIM2 + AKR1C3 + 
##     ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + 
##     AOAH + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATM
## 
##            Df   Deviance AIC
## - ANXA1     1 3.5941e-10  70
## - APOL2     1 3.6613e-10  70
## - ABCE1     1 4.1975e-10  70
## - ASB15     1 4.3518e-10  70
## - ACVR1     1 4.7623e-10  70
## - APOLD1    1 4.9384e-10  70
## - AIM2      1 5.0629e-10  70
## - ARG2      1 5.1333e-10  70
## - ALOX15    1 5.2059e-10  70
## - ACTA2     1 5.3917e-10  70
## - AICDA     1 5.4448e-10  70
## - ABCC2     1 5.5562e-10  70
## - ARG1      1 5.8513e-10  70
## - AOAH      1 6.2444e-10  70
## - ANKRD22   1 6.4276e-10  70
## - AGER      1 6.5146e-10  70
## - AREG      1 6.5665e-10  70
## - ABCA1     1 6.7008e-10  70
## - ADGRL4    1 6.7935e-10  70
## - ATM       1 6.9117e-10  70
## - ADAMTS1   1 7.0882e-10  70
## - AKR1C3    1 7.2095e-10  70
## - ADAMDEC1  1 7.3154e-10  70
## - ACVRL1    1 7.6243e-10  70
## - ALDH3A2   1 7.7833e-10  70
## - AHR       1 7.7843e-10  70
## - ALAS1     1 7.8175e-10  70
## - AQP1      1 7.9706e-10  70
## - APOL1     1 7.9795e-10  70
## - ARHGDIB   1 8.1341e-10  70
## - ANKRD1    1 9.0901e-10  70
## - AQP2      1 1.0363e-09  70
## - AGT       1 1.0910e-09  70
## - ARRB2     1 1.2146e-09  70
## - ALOX5     1 1.3153e-09  70
## <none>        3.4988e-10  72
## 
## Step:  AIC=70
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAMDEC1 + 
##     ADAMTS1 + ADGRL4 + AGER + AGT + AHR + AICDA + AIM2 + AKR1C3 + 
##     ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + 
##     APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + 
##     ARHGDIB + ARRB2 + ASB15 + ATM
## 
##            Df   Deviance AIC
## - APOL2     1 3.7157e-10  68
## - ABCE1     1 4.2176e-10  68
## - ASB15     1 4.5564e-10  68
## - ACVR1     1 5.0434e-10  68
## - ARG2      1 5.2636e-10  68
## - APOLD1    1 5.4698e-10  68
## - ABCC2     1 5.6977e-10  68
## - ACTA2     1 5.7469e-10  68
## - AICDA     1 5.7775e-10  68
## - ARG1      1 5.9306e-10  68
## - AIM2      1 6.0928e-10  68
## - ALOX15    1 7.1538e-10  68
## - AREG      1 7.4605e-10  68
## - ANKRD22   1 7.4900e-10  68
## - AOAH      1 7.5567e-10  68
## - AGER      1 8.3857e-10  68
## - ADAMTS1   1 8.5176e-10  68
## - ATM       1 9.1789e-10  68
## - ADAMDEC1  1 9.2261e-10  68
## - APOL1     1 9.4276e-10  68
## - ANKRD1    1 9.5633e-10  68
## - ADGRL4    1 9.6203e-10  68
## - ARHGDIB   1 9.7066e-10  68
## - AQP1      1 1.0914e-09  68
## - AKR1C3    1 1.1241e-09  68
## - ABCA1     1 1.1452e-09  68
## - ALDH3A2   1 1.2391e-09  68
## - AHR       1 1.3050e-09  68
## - ALAS1     1 1.3843e-09  68
## - ACVRL1    1 1.6931e-09  68
## - ALOX5     1 1.7813e-09  68
## - ARRB2     1 1.8231e-09  68
## - AGT       1 2.2138e-09  68
## - AQP2      1 2.5288e-09  68
## <none>        3.5941e-10  70
## 
## Step:  AIC=68
## Class ~ ABCA1 + ABCC2 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAMDEC1 + 
##     ADAMTS1 + ADGRL4 + AGER + AGT + AHR + AICDA + AIM2 + AKR1C3 + 
##     ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + 
##     APOL1 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATM
## 
##            Df   Deviance AIC
## - ABCE1     1 4.2677e-10  66
## - ASB15     1 4.6535e-10  66
## - ACVR1     1 5.2282e-10  66
## - ARG2      1 5.3192e-10  66
## - APOLD1    1 5.6167e-10  66
## - AICDA     1 5.8019e-10  66
## - ABCC2     1 5.8706e-10  66
## - ARG1      1 6.0049e-10  66
## - AIM2      1 6.2160e-10  66
## - ACTA2     1 6.9015e-10  66
## - ALOX15    1 7.1910e-10  66
## - AOAH      1 7.6202e-10  66
## - ANKRD22   1 7.6300e-10  66
## - AREG      1 7.7612e-10  66
## - AGER      1 8.4769e-10  66
## - ATM       1 9.2388e-10  66
## - ADAMDEC1  1 9.2902e-10  66
## - ADAMTS1   1 9.6186e-10  66
## - APOL1     1 9.7845e-10  66
## - ARHGDIB   1 9.9306e-10  66
## - ADGRL4    1 1.0153e-09  66
## - ANKRD1    1 1.0895e-09  66
## - AQP1      1 1.1110e-09  66
## - AKR1C3    1 1.1192e-09  66
## - ABCA1     1 1.1583e-09  66
## - ALDH3A2   1 1.2651e-09  66
## - AHR       1 1.3105e-09  66
## - ALAS1     1 1.5129e-09  66
## - ACVRL1    1 1.7714e-09  66
## - ALOX5     1 1.8003e-09  66
## - ARRB2     1 1.9032e-09  66
## - AGT       1 2.2386e-09  66
## - AQP2      1 2.5295e-09  66
## <none>        3.7157e-10  68
## 
## Step:  AIC=66
## Class ~ ABCA1 + ABCC2 + ACTA2 + ACVR1 + ACVRL1 + ADAMDEC1 + ADAMTS1 + 
##     ADGRL4 + AGER + AGT + AHR + AICDA + AIM2 + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + 
##     ASB15 + ATM
## 
##            Df   Deviance AIC
## - ASB15     1 4.6920e-10  64
## - ACVR1     1 5.3000e-10  64
## - ARG2      1 5.4210e-10  64
## - APOLD1    1 5.7830e-10  64
## - AICDA     1 5.8520e-10  64
## - ABCC2     1 5.9130e-10  64
## - ARG1      1 6.1330e-10  64
## - AIM2      1 6.7640e-10  64
## - ACTA2     1 7.0940e-10  64
## - AREG      1 7.8080e-10  64
## - ALOX15    1 7.8730e-10  64
## - ANKRD22   1 7.9880e-10  64
## - AOAH      1 8.5910e-10  64
## - AGER      1 8.6560e-10  64
## - ADAMDEC1  1 1.0208e-09  64
## - ADGRL4    1 1.0657e-09  64
## - ATM       1 1.0714e-09  64
## - ADAMTS1   1 1.1021e-09  64
## - ANKRD1    1 1.1114e-09  64
## - AQP1      1 1.1366e-09  64
## - ABCA1     1 1.1831e-09  64
## - ARHGDIB   1 1.2626e-09  64
## - AHR       1 1.3413e-09  64
## - ALDH3A2   1 1.3715e-09  64
## - APOL1     1 1.3945e-09  64
## - ALAS1     1 1.5212e-09  64
## - AKR1C3    1 1.6223e-09  64
## - ARRB2     1 2.0168e-09  64
## - ALOX5     1 2.1025e-09  64
## - AGT       1 2.9015e-09  64
## - ACVRL1    1 2.9228e-09  64
## - AQP2      1 3.2822e-09  64
## <none>        4.2680e-10  66
## 
## Step:  AIC=64
## Class ~ ABCA1 + ABCC2 + ACTA2 + ACVR1 + ACVRL1 + ADAMDEC1 + ADAMTS1 + 
##     ADGRL4 + AGER + AGT + AHR + AICDA + AIM2 + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + 
##     ATM
## 
##            Df   Deviance AIC
## - ACVR1     1 5.4900e-10  62
## - ARG2      1 5.6450e-10  62
## - AICDA     1 5.8750e-10  62
## - APOLD1    1 5.9030e-10  62
## - ABCC2     1 6.2680e-10  62
## - ARG1      1 6.2970e-10  62
## - AIM2      1 7.1810e-10  62
## - ACTA2     1 7.3850e-10  62
## - AREG      1 7.9440e-10  62
## - ANKRD22   1 8.2080e-10  62
## - ALOX15    1 8.2350e-10  62
## - AOAH      1 8.8480e-10  62
## - AGER      1 9.4490e-10  62
## - AQP1      1 1.1459e-09  62
## - ADAMTS1   1 1.1514e-09  62
## - ADAMDEC1  1 1.1806e-09  62
## - ATM       1 1.1942e-09  62
## - ADGRL4    1 1.2126e-09  62
## - ABCA1     1 1.2886e-09  62
## - ANKRD1    1 1.3502e-09  62
## - AHR       1 1.4205e-09  62
## - ARHGDIB   1 1.5978e-09  62
## - APOL1     1 1.6296e-09  62
## - ALDH3A2   1 1.6532e-09  62
## - AKR1C3    1 1.8104e-09  62
## - ALAS1     1 1.9639e-09  62
## - ARRB2     1 2.0092e-09  62
## - ACVRL1    1 2.1999e-09  62
## - ALOX5     1 3.1200e-09  62
## - AQP2      1 3.5704e-09  62
## - AGT       1 4.7175e-09  62
## <none>        4.6920e-10  64
## 
## Step:  AIC=62
## Class ~ ABCA1 + ABCC2 + ACTA2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + 
##     ADGRL4 + AGER + AGT + AHR + AICDA + AIM2 + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + 
##     ATM
## 
##            Df   Deviance AIC
## - AICDA     1 5.9960e-10  60
## - APOLD1    1 6.2830e-10  60
## - ARG1      1 6.5690e-10  60
## - ABCC2     1 6.5980e-10  60
## - ARG2      1 6.6000e-10  60
## - ACTA2     1 7.6020e-10  60
## - AREG      1 7.9610e-10  60
## - AIM2      1 8.1230e-10  60
## - ALOX15    1 8.5500e-10  60
## - ANKRD22   1 9.7460e-10  60
## - AOAH      1 9.9570e-10  60
## - ADAMDEC1  1 1.1831e-09  60
## - AGER      1 1.2271e-09  60
## - AQP1      1 1.2545e-09  60
## - ADGRL4    1 1.3027e-09  60
## - ATM       1 1.3165e-09  60
## - AHR       1 1.5851e-09  60
## - ABCA1     1 1.6295e-09  60
## - ANKRD1    1 1.6411e-09  60
## - ALDH3A2   1 1.7074e-09  60
## - ALAS1     1 2.0095e-09  60
## - APOL1     1 2.0785e-09  60
## - ADAMTS1   1 2.0869e-09  60
## - ARHGDIB   1 2.4901e-09  60
## - ARRB2     1 2.7259e-09  60
## - ACVRL1    1 2.8350e-09  60
## - AKR1C3    1 3.0542e-09  60
## - ALOX5     1 3.1812e-09  60
## - AQP2      1 3.8229e-09  60
## - AGT       1 5.5398e-09  60
## <none>        5.4900e-10  62
## 
## Step:  AIC=60
## Class ~ ABCA1 + ABCC2 + ACTA2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + 
##     ADGRL4 + AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + APOLD1 + 
##     AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ATM
## 
##            Df   Deviance AIC
## - APOLD1    1 6.3620e-10  58
## - ARG1      1 7.2870e-10  58
## - ARG2      1 7.6000e-10  58
## - ACTA2     1 7.7030e-10  58
## - ABCC2     1 8.0020e-10  58
## - AREG      1 8.4080e-10  58
## - ALOX15    1 8.8700e-10  58
## - AOAH      1 1.0085e-09  58
## - AIM2      1 1.0128e-09  58
## - ANKRD22   1 1.0264e-09  58
## - ADAMDEC1  1 1.1994e-09  58
## - AQP1      1 1.2673e-09  58
## - AGER      1 1.2950e-09  58
## - ADGRL4    1 1.3175e-09  58
## - ATM       1 1.3348e-09  58
## - ABCA1     1 1.6613e-09  58
## - ANKRD1    1 1.6965e-09  58
## - ALDH3A2   1 1.7874e-09  58
## - ALAS1     1 2.0081e-09  58
## - AHR       1 2.1348e-09  58
## - APOL1     1 2.1968e-09  58
## - ARHGDIB   1 2.7527e-09  58
## - ARRB2     1 2.9975e-09  58
## - ADAMTS1   1 3.1744e-09  58
## - AKR1C3    1 3.1753e-09  58
## - ALOX5     1 3.2585e-09  58
## - AQP2      1 3.8735e-09  58
## - ACVRL1    1 6.1956e-09  58
## - AGT       1 6.3577e-09  58
## <none>        5.9960e-10  60
## 
## Step:  AIC=58
## Class ~ ABCA1 + ABCC2 + ACTA2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + 
##     ADGRL4 + AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + AQP1 + 
##     AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ATM
## 
##            Df   Deviance AIC
## - ARG1      1 7.8340e-10  56
## - ACTA2     1 7.9900e-10  56
## - ARG2      1 8.1430e-10  56
## - ABCC2     1 8.4090e-10  56
## - AREG      1 8.5080e-10  56
## - ALOX15    1 9.4630e-10  56
## - AOAH      1 1.0184e-09  56
## - ANKRD22   1 1.0365e-09  56
## - AIM2      1 1.2391e-09  56
## - ADAMDEC1  1 1.2411e-09  56
## - ADGRL4    1 1.3404e-09  56
## - AQP1      1 1.3418e-09  56
## - AGER      1 1.3620e-09  56
## - ATM       1 1.6233e-09  56
## - ABCA1     1 1.7175e-09  56
## - ALDH3A2   1 1.7916e-09  56
## - ANKRD1    1 1.8667e-09  56
## - ALAS1     1 2.1130e-09  56
## - APOL1     1 2.2091e-09  56
## - ADAMTS1   1 2.3774e-09  56
## - ACVRL1    1 2.9070e-09  56
## - AHR       1 3.0131e-09  56
## - ARRB2     1 3.1295e-09  56
## - AKR1C3    1 3.1739e-09  56
## - ALOX5     1 3.3975e-09  56
## - ARHGDIB   1 4.3956e-09  56
## - AQP2      1 4.9952e-09  56
## - AGT       1 6.2499e-09  56
## <none>        6.3620e-10  58
## 
## Step:  AIC=56
## Class ~ ABCA1 + ABCC2 + ACTA2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + 
##     ADGRL4 + AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + AQP1 + 
##     AQP2 + AREG + ARG2 + ARHGDIB + ARRB2 + ATM
## 
##            Df   Deviance AIC
## - ACTA2     1 9.1700e-10  54
## - ARG2      1 9.5900e-10  54
## - AOAH      1 1.1043e-09  54
## - ANKRD22   1 1.1787e-09  54
## - AREG      1 1.2195e-09  54
## - AIM2      1 1.2470e-09  54
## - AQP1      1 1.3511e-09  54
## - AGER      1 1.3714e-09  54
## - ADGRL4    1 1.5088e-09  54
## - ADAMDEC1  1 1.5204e-09  54
## - ALOX15    1 1.5957e-09  54
## - ABCC2     1 1.7229e-09  54
## - ATM       1 1.8210e-09  54
## - ABCA1     1 1.8343e-09  54
## - ANKRD1    1 1.9204e-09  54
## - ALDH3A2   1 1.9958e-09  54
## - ALAS1     1 2.1969e-09  54
## - APOL1     1 2.2603e-09  54
## - ADAMTS1   1 2.5392e-09  54
## - ACVRL1    1 3.2857e-09  54
## - AKR1C3    1 3.3872e-09  54
## - AHR       1 3.4261e-09  54
## - ALOX5     1 3.7125e-09  54
## - ARRB2     1 3.8625e-09  54
## - ARHGDIB   1 3.8822e-09  54
## - AQP2      1 4.7870e-09  54
## - AGT       1 6.6781e-09  54
## <none>        7.8340e-10  56
## 
## Step:  AIC=54
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + AQP1 + AQP2 + AREG + 
##     ARG2 + ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance   AIC
## - ARG2      1      0.0  52.0
## - ANKRD22   1      0.0  52.0
## - AOAH      1      0.0  52.0
## - AREG      1      0.0  52.0
## - AIM2      1      0.0  52.0
## - AQP1      1      0.0  52.0
## - AGER      1      0.0  52.0
## - ADAMDEC1  1      0.0  52.0
## - ALOX15    1      0.0  52.0
## - ABCC2     1      0.0  52.0
## - ATM       1      0.0  52.0
## - ALDH3A2   1      0.0  52.0
## - ADGRL4    1      0.0  52.0
## - ALAS1     1      0.0  52.0
## - APOL1     1      0.0  52.0
## - ABCA1     1      0.0  52.0
## - ADAMTS1   1      0.0  52.0
## - ANKRD1    1      0.0  52.0
## - AKR1C3    1      0.0  52.0
## - ARRB2     1      0.0  52.0
## - ARHGDIB   1      0.0  52.0
## - ACVRL1    1      0.0  52.0
## - AQP2      1      0.0  52.0
## - AHR       1      0.0  52.0
## - AGT       1      0.0  52.0
## <none>             0.0  54.0
## - ALOX5     1    576.7 628.7
## 
## Step:  AIC=52
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + AOAH + APOL1 + AQP1 + AQP2 + AREG + 
##     ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance    AIC
## - AOAH      1     0.00  50.00
## - ANKRD22   1     0.00  50.00
## - AREG      1     0.00  50.00
## - AIM2      1     0.00  50.00
## - AGER      1     0.00  50.00
## - ADAMDEC1  1     0.00  50.00
## - AQP1      1     0.00  50.00
## - ATM       1     0.00  50.00
## - ALOX15    1     0.00  50.00
## - ABCC2     1     0.00  50.00
## - ALDH3A2   1     0.00  50.00
## - ADGRL4    1     0.00  50.00
## - ALAS1     1     0.00  50.00
## - APOL1     1     0.00  50.00
## - ABCA1     1     0.00  50.00
## - ANKRD1    1     0.00  50.00
## - ADAMTS1   1     0.00  50.00
## - ARRB2     1     0.00  50.00
## - ARHGDIB   1     0.00  50.00
## - ACVRL1    1     0.00  50.00
## - AQP2      1     0.00  50.00
## - AHR       1     0.00  50.00
## - AKR1C3    1     0.00  50.00
## - AGT       1     0.00  50.00
## <none>            0.00  52.00
## - ALOX5     1   360.44 410.44
## 
## Step:  AIC=50
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + APOL1 + AQP1 + AQP2 + AREG + ARHGDIB + 
##     ARRB2 + ATM
## 
##            Df Deviance   AIC
## - ANKRD22   1     0.00 48.00
## - AREG      1     0.00 48.00
## - AIM2      1     0.00 48.00
## - AGER      1     0.00 48.00
## - ALOX15    1     0.00 48.00
## - ATM       1     0.00 48.00
## - AQP1      1     0.00 48.00
## - ABCC2     1     0.00 48.00
## - ADAMDEC1  1     0.00 48.00
## - ADGRL4    1     0.00 48.00
## - APOL1     1     0.00 48.00
## - ABCA1     1     0.00 48.00
## - ADAMTS1   1     0.00 48.00
## - ALAS1     1     0.00 48.00
## - ANKRD1    1     0.00 48.00
## - ALDH3A2   1     0.00 48.00
## - AKR1C3    1     0.00 48.00
## - ARRB2     1     0.00 48.00
## - ARHGDIB   1     0.00 48.00
## - ALOX5     1     0.00 48.00
## - ACVRL1    1     0.00 48.00
## - AHR       1     0.00 48.00
## - AQP2      1     0.00 48.00
## <none>            0.00 50.00
## - AGT       1    23.46 71.46
## 
## Step:  AIC=48
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + APOL1 + AQP1 + AQP2 + AREG + ARHGDIB + ARRB2 + 
##     ATM
## 
##            Df Deviance    AIC
## - AREG      1    0.000 46.000
## - AIM2      1    0.000 46.000
## - AGER      1    0.000 46.000
## - AQP1      1    0.000 46.000
## - ALOX15    1    0.000 46.000
## - ATM       1    0.000 46.000
## - ABCC2     1    0.000 46.000
## - ADGRL4    1    0.000 46.000
## - ADAMDEC1  1    0.000 46.000
## - ABCA1     1    0.000 46.000
## - ADAMTS1   1    0.000 46.000
## - APOL1     1    0.000 46.000
## - ALAS1     1    0.000 46.000
## - ALDH3A2   1    0.000 46.000
## - ANKRD1    1    0.000 46.000
## - ARRB2     1    0.000 46.000
## - ARHGDIB   1    0.000 46.000
## - AHR       1    0.000 46.000
## - ACVRL1    1    0.000 46.000
## - ALOX5     1    0.000 46.000
## - AKR1C3    1    0.000 46.000
## - AQP2      1    0.000 46.000
## <none>           0.000 48.000
## - AGT       1   23.566 69.566
## 
## Step:  AIC=46
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGER + AGT + AHR + AIM2 + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + APOL1 + AQP1 + AQP2 + ARHGDIB + ARRB2 + 
##     ATM
## 
##            Df Deviance    AIC
## - AIM2      1    0.000  44.00
## - AGER      1    0.000  44.00
## - AQP1      1    0.000  44.00
## - ATM       1    0.000  44.00
## - ALOX15    1    0.000  44.00
## - ABCC2     1    0.000  44.00
## - ADAMDEC1  1    0.000  44.00
## - ABCA1     1    0.000  44.00
## - ADGRL4    1    0.000  44.00
## - ADAMTS1   1    0.000  44.00
## - APOL1     1    0.000  44.00
## - ALAS1     1    0.000  44.00
## - ANKRD1    1    0.000  44.00
## - ARRB2     1    0.000  44.00
## - ALDH3A2   1    0.000  44.00
## - ARHGDIB   1    0.000  44.00
## - AKR1C3    1    0.000  44.00
## - ACVRL1    1    0.000  44.00
## - ALOX5     1    0.000  44.00
## - AQP2      1    0.000  44.00
## <none>           0.000  46.00
## - AGT       1   24.841  68.84
## - AHR       1  288.349 332.35
## 
## Step:  AIC=44
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGER + AGT + AHR + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + 
##     ANKRD1 + APOL1 + AQP1 + AQP2 + ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance    AIC
## - AGER      1    0.000 42.000
## - AQP1      1    0.000 42.000
## - ALOX15    1    0.000 42.000
## - ATM       1    0.000 42.000
## - ABCC2     1    0.000 42.000
## - ADAMDEC1  1    0.000 42.000
## - ABCA1     1    0.000 42.000
## - ALAS1     1    0.000 42.000
## - APOL1     1    0.000 42.000
## - ADAMTS1   1    0.000 42.000
## - ADGRL4    1    0.000 42.000
## - ANKRD1    1    0.000 42.000
## - ALDH3A2   1    0.000 42.000
## - ARRB2     1    0.000 42.000
## - ACVRL1    1    0.000 42.000
## - AKR1C3    1    0.000 42.000
## - ARHGDIB   1    0.000 42.000
## - AQP2      1    0.000 42.000
## - ALOX5     1    0.000 42.000
## - AHR       1    0.000 42.000
## <none>           0.000 44.000
## - AGT       1   25.314 67.315
## 
## Step:  AIC=42
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGT + AHR + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     APOL1 + AQP1 + AQP2 + ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance    AIC
## - AQP1      1    0.000 40.000
## - ATM       1    0.000 40.000
## - ABCC2     1    0.000 40.000
## - ALOX15    1    0.000 40.000
## - ADAMDEC1  1    0.000 40.000
## - ABCA1     1    0.000 40.000
## - APOL1     1    0.000 40.000
## - ADAMTS1   1    0.000 40.000
## - ANKRD1    1    0.000 40.000
## - ALAS1     1    0.000 40.000
## - ADGRL4    1    0.000 40.000
## - ALDH3A2   1    0.000 40.000
## - ARRB2     1    0.000 40.000
## - AHR       1    0.000 40.000
## - ALOX5     1    0.000 40.000
## - ARHGDIB   1    0.000 40.000
## <none>           0.000 42.000
## - AQP2      1   16.833 56.833
## - ACVRL1    1   17.208 57.208
## - AGT       1   25.581 65.581
## - AKR1C3    1   31.920 71.920
## 
## Step:  AIC=40
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGT + AHR + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     APOL1 + AQP2 + ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance    AIC
## - ALOX15    1     0.00  38.00
## - ABCC2     1     0.00  38.00
## - ADAMDEC1  1     0.00  38.00
## - APOL1     1     0.00  38.00
## - ATM       1     0.00  38.00
## - ABCA1     1     0.00  38.00
## - ADAMTS1   1     0.00  38.00
## - ALAS1     1     0.00  38.00
## - ANKRD1    1     0.00  38.00
## - ADGRL4    1     0.00  38.00
## - ALDH3A2   1     0.00  38.00
## - ALOX5     1     0.00  38.00
## <none>            0.00  40.00
## - AQP2      1    16.92  54.92
## - ACVRL1    1    17.26  55.26
## - ARHGDIB   1    24.78  62.78
## - AGT       1    26.33  64.33
## - AKR1C3    1    32.80  70.80
## - ARRB2     1   360.44 398.44
## - AHR       1   576.70 614.70
## 
## Step:  AIC=38
## Class ~ ABCA1 + ABCC2 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + 
##     AGT + AHR + AKR1C3 + ALAS1 + ALDH3A2 + ALOX5 + ANKRD1 + APOL1 + 
##     AQP2 + ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance    AIC
## - ABCC2     1     0.00  36.00
## - ADAMDEC1  1     0.00  36.00
## - ADAMTS1   1     0.00  36.00
## - ATM       1     0.00  36.00
## - ABCA1     1     0.00  36.00
## - ADGRL4    1     0.00  36.00
## - APOL1     1     0.00  36.00
## - ALAS1     1     0.00  36.00
## - ANKRD1    1     0.00  36.00
## - ALDH3A2   1     0.00  36.00
## <none>            0.00  38.00
## - ACVRL1    1    17.83  53.83
## - AQP2      1    24.03  60.03
## - ARHGDIB   1    24.79  60.79
## - AGT       1    27.74  63.74
## - AKR1C3    1    33.18  69.18
## - ARRB2     1   288.35 324.35
## - AHR       1   360.44 396.44
## - ALOX5     1   576.70 612.70
## 
## Step:  AIC=36
## Class ~ ABCA1 + ACVRL1 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGT + 
##     AHR + AKR1C3 + ALAS1 + ALDH3A2 + ALOX5 + ANKRD1 + APOL1 + 
##     AQP2 + ARHGDIB + ARRB2 + ATM
## 
##            Df Deviance    AIC
## - ADAMDEC1  1    0.000 34.000
## - ABCA1     1    0.000 34.000
## - ATM       1    0.000 34.000
## - ADGRL4    1    0.000 34.000
## - ADAMTS1   1    0.000 34.000
## - ANKRD1    1    0.000 34.000
## - ALDH3A2   1    0.000 34.000
## - ALAS1     1    0.000 34.000
## <none>           0.000 36.000
## - AHR       1   15.000 49.000
## - ARRB2     1   16.122 50.122
## - ACVRL1    1   19.682 53.682
## - AQP2      1   24.467 58.467
## - ALOX5     1   25.176 59.176
## - ARHGDIB   1   26.618 60.618
## - AGT       1   27.775 61.775
## - APOL1     1   28.604 62.604
## - AKR1C3    1   35.679 69.679
## 
## Step:  AIC=34
## Class ~ ABCA1 + ACVRL1 + ADAMTS1 + ADGRL4 + AGT + AHR + AKR1C3 + 
##     ALAS1 + ALDH3A2 + ALOX5 + ANKRD1 + APOL1 + AQP2 + ARHGDIB + 
##     ARRB2 + ATM
## 
##           Df Deviance    AIC
## - ABCA1    1     0.00  32.00
## - ATM      1     0.00  32.00
## - ADAMTS1  1     0.00  32.00
## - ADGRL4   1     0.00  32.00
## - ANKRD1   1     0.00  32.00
## - ALDH3A2  1     0.00  32.00
## <none>           0.00  34.00
## - AHR      1    15.03  47.03
## - ARRB2    1    17.03  49.03
## - ACVRL1   1    19.71  51.71
## - AQP2     1    24.47  56.47
## - ALOX5    1    25.49  57.49
## - ARHGDIB  1    26.62  58.62
## - AGT      1    27.80  59.80
## - APOL1    1    28.97  60.97
## - AKR1C3   1    35.88  67.88
## - ALAS1    1   504.61 536.61
## 
## Step:  AIC=32
## Class ~ ACVRL1 + ADAMTS1 + ADGRL4 + AGT + AHR + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX5 + ANKRD1 + APOL1 + AQP2 + ARHGDIB + ARRB2 + 
##     ATM
## 
##           Df Deviance    AIC
## - ANKRD1   1     0.00  30.00
## - ADGRL4   1     0.00  30.00
## - ADAMTS1  1     0.00  30.00
## <none>           0.00  32.00
## - ALAS1    1    14.23  44.23
## - AHR      1    15.11  45.11
## - ALDH3A2  1    19.97  49.97
## - ARRB2    1    20.01  50.01
## - ACVRL1   1    20.69  50.69
## - AQP2     1    24.47  54.47
## - ALOX5    1    25.54  55.54
## - ARHGDIB  1    27.01  57.01
## - AGT      1    28.05  58.05
## - APOL1    1    28.98  58.98
## - AKR1C3   1    35.88  65.88
## - ATM      1   360.44 390.44
## 
## Step:  AIC=30
## Class ~ ACVRL1 + ADAMTS1 + ADGRL4 + AGT + AHR + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX5 + APOL1 + AQP2 + ARHGDIB + ARRB2 + ATM
## 
##           Df Deviance    AIC
## - ADGRL4   1    0.000 28.000
## - ATM      1    0.000 28.000
## <none>          0.000 30.000
## - ALAS1    1   14.527 42.527
## - AHR      1   16.017 44.017
## - ARRB2    1   20.279 48.279
## - ACVRL1   1   20.773 48.773
## - ADAMTS1  1   21.955 49.955
## - ALDH3A2  1   23.732 51.732
## - AQP2     1   26.984 54.984
## - ARHGDIB  1   27.613 55.613
## - APOL1    1   29.000 57.000
## - ALOX5    1   29.526 57.526
## - AGT      1   31.337 59.337
## - AKR1C3   1   35.883 63.883
## 
## Step:  AIC=28
## Class ~ ACVRL1 + ADAMTS1 + AGT + AHR + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX5 + APOL1 + AQP2 + ARHGDIB + ARRB2 + ATM
## 
##           Df Deviance    AIC
## <none>           0.00  28.00
## - ALAS1    1    15.23  41.23
## - AHR      1    16.90  42.90
## - ARRB2    1    20.28  46.28
## - ADAMTS1  1    22.26  48.26
## - ALDH3A2  1    25.01  51.01
## - AQP2     1    27.13  53.13
## - ACVRL1   1    27.25  53.25
## - ARHGDIB  1    27.73  53.73
## - APOL1    1    29.01  55.01
## - AGT      1    31.38  57.38
## - ALOX5    1    32.59  58.59
## - AKR1C3   1    35.96  61.96
## - ATM      1   504.61 530.61
## Class ~ ACVRL1 + ADAMTS1 + AGT + AHR + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX5 + APOL1 + AQP2 + ARHGDIB + ARRB2 + ATM

7.2 Affymetrix

7.2.1 Full model

7.2.2 AIC stepwise model selection

## Start:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP + TBC1D10B + TBP + UBB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP + TBC1D10B + TBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP + TBC1D10B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA + STK11IP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA + 
##     SDHA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A + PPIA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1 + POLR2A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2 + OAZ1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB + NRDE2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD + GUSB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1 + G6PD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1 + ABCF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70 + 
##     ZEB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1 + ZAP70
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1 + XBP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A + XAF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF + WNT9A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR + VWF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC + VSIR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA + VEGFC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN + 
##     VEGFA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1 + VCAN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD + VCAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2 + UMOD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22 + TYK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1 + TRIM22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1 + TRIB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN + TREM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1 + 
##     TRDN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6 + TRAT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4 + TRAF6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT + TRAF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53 + TPMT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2 + TP53
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9 + TOX2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8 + TNFSF9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4 + 
##     TNFSF8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18 + TNFSF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14 + TNFSF18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10 + TNFSF14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9 + TNFSF10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4 + TNFRSF9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B + 
##     TNFRSF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A + TNFRSF1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18 + TNFRSF1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17 + TNFRSF18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14 + TNFRSF17
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6 + TNFRSF14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3 + 
##     TNFAIP6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF + TNFAIP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC + TNF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A + TNC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18 + TMEM178A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1 + TM4SF18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9 + TM4SF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8 + 
##     TLR9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7 + TLR8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5 + TLR7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4 + TLR5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3 + TLR4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2 + TLR3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP + TLR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1 + TIPARP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT + 
##     TIMP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS + TIGIT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1 + THEMIS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD + THBS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1 + THBD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2 + TGIF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1 + TGFBR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI + 
##     TGFBR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2 + TGFBI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1 + TGFB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC + TGFB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3 + TFRC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK + TFF3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A + TEK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7 + TCL1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21 + 
##     TCF7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1 + TBX21
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP + TBK1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2 + TAPBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK + TAP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK + TANK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6 + SYK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B + STAT6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A + 
##     STAT5B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4 + STAT5A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3 + STAT4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1 + STAT3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4 + STAT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC + ST8SIA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4 + SRC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB + 
##     SPRY4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140 + SPIB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100 + SP140
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7 + SP100
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST + SOX7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2 + SOST
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3 + SOD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1 + SOCS3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4 + 
##     SOCS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5 + SMARCA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4 + SMAD5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3 + SMAD4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2 + SMAD3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI + SMAD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1 + SLPI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15 + 
##     SLC4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2 + SLC25A15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3 + SLC22A2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3 + SLC19A3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1 + SLC12A3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8 + SLC11A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7 + 
##     SLAMF8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6 + SLAMF7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA + SLAMF6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI + SLA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG + SKI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5 + SIRPG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR + SIGLEC5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3 + 
##     SIGIRR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B + SHROOM3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A + SH2D1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD + SH2D1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC + SFTPD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB + SFTPC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1 + SFTPB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1 + 
##     SERTAD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1 + SERPING1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3 + SERPINE1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5 + SERPINA3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A + SERINC5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG + SEMA7A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP + 
##     SELPLG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL + SELP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE + SELL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1 + SELE
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1 + SDC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1 + SCGB1A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1 + SAMHD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B + S1PR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9 + 
##     S100B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8 + S100A9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12 + S100A8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA + S100A12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1 + RXRA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4 + RUNX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1 + RTN4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6 + 
##     RPS6KB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19 + RPS6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC + RPL19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA + RORC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4 + RORA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149 + ROBO4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU + RNF149
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ + RHOU
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5 + 
##     RHOJ
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN + RGS5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB + RGN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA + RELB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL + RELA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9 + REL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1 + RASSF9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1 + RASIP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5 + 
##     RARRES1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3 + RAPGEF5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2 + RAMP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1 + RAG2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C + RAF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR + RAB40C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3 + PVR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO + PTX3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC + 
##     PTPRO
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7 + PTPRC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6 + PTPN7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22 + PTPN6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2 + PTPN22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2 + PTPN2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4 + PTGS2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1 + 
##     PTGER4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2 + PSTPIP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1 + PSME2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9 + PSME1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8 + PSMB9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10 + PSMB8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1 + PSMB10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1 + 
##     PSEN1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1 + PROX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1 + PRF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA + PRDM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F + PPP3CA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP + PPM1F
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1 + PPBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC + 
##     POU2AF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2 + PNOC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR + PLK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU + PLAUR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT + PLAU
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4 + PLAT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A + PLAAT4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1 + PLA1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG + 
##     PIN1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD + PIK3CG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX + PIK3CD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4 + PHEX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1 + PF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN + PECAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB + PDPN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA + PDGFRB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2 + 
##     PDGFA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1 + PDCD1LG2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5 + PDCD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD + PAX5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4 + PALMD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4 + PADI4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR + P2RX4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL + OSMR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1 + 
##     OASL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB + NR4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA + NPPB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2 + NPPA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1 + NPHS2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1 + NPHS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4 + NPDC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2 + NOX4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1 + 
##     NOTCH2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3 + NOTCH1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2 + NOS3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2 + NOS2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1 + NOD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT + NOD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3 + NNMT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5 + NLRP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7 + 
##     NLRC5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ + NKG7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA + NFKBIZ
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2 + NFKBIA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1 + NFKB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3 + NFKB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2 + NFIL3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1 + 
##     NFATC2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1 + NFATC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1 + NFAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1 + NCR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2 + NCAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9 + MYOM2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88 + MYL9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC + MYD88
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1 + 
##     MYC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB + MYBL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2 + MYB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1 + MX2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1 + MX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR + MUC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A + MTOR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A + MT2A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A + MT1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A + 
##     MS4A6A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2 + MS4A4A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1 + MS4A2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1 + MS4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B + MRC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2 + MPIG6B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9 + MMRN2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14 + MMP9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12 + 
##     MMP14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME + MMP12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF + MME
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA + MIF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET + MICA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK + MET
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1 + MERTK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11 + MEOX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C + 
##     MEGF11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6 + MEF2C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM + MCM6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP + MCAM
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2 + MBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1 + MASP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8 + MASP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3 + MAPK8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14 + 
##     MAPK3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13 + MAPK14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12 + MAPK13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11 + MAPK12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1 + MAPK11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL + MAP3K1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF + MALL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1 + 
##     MAF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96 + LYVE1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF + LY96
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR + LTF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB + LTBR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA + LTB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1 + LTA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32 + LST1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2 + LRRC32
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX + 
##     LRP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4 + LOX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2 + LILRB4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1 + LILRB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF + LILRB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6 + LIF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3 + LHX6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1 + LGALS3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR + 
##     LEF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2 + LDLR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2 + LCP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK + LCN2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN + LCK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3 + LAYN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1 + LAP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1 + LAMP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3 + 
##     LAIR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8 + LAG3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19 + KRT8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1 + KRT19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1 + KLRG1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1 + KLRF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1 + KLRD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1 + KLRC1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13 + 
##     KLRB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4 + KLHL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2 + KLF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG + KLF2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT + KITLG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR + KIT
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1 + KDR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN + KAAG1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3 + JUN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2 + 
##     JAK3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1 + JAK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6 + JAK1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2 + ITGB6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX + ITGB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM + ITGAX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4 + ITGAM
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20 + ITGA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15 + 
##     ISG20
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1 + ISG15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8 + IRS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7 + IRF8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6 + IRF7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4 + IRF6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1 + IRF4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D + IRF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC + 
##     INPP5D
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2 + INHBC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1 + IMPDH2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R + IMPDH1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7 + IL7R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST + IL7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R + IL6ST
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6 + IL6R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5 + 
##     IL6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R + IL5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4 + IL4R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33 + IL4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG + IL33
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB + IL2RG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA + IL2RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27 + IL2RA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R + 
##     IL27
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A + IL23R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22 + IL23A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R + IL22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21 + IL21R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2 + IL21
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN + IL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1 + IL1RN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP + 
##     IL1RL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2 + IL1RAP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1 + IL1R2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B + IL1R1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A + IL1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP + IL1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP + IL18RAP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18 + IL18BP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC + 
##     IL18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB + IL17RC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA + IL17RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F + IL17RA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A + IL17F
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16 + IL17A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15 + IL16
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13 + IL15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2 + 
##     IL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1 + IL12RB2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B + IL12RB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A + IL12B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB + IL12A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA + IL10RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10 + IL10RA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2 + 
##     IL10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1 + IKZF2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG + IKZF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB + IKBKG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC + IKBKB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1 + IGKC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1 + IGHA1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1 + IGFL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R + 
##     IGFBP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R + IGF2R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1 + IGF1R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2 + IGF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1 + IFNGR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG + IFNGR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2 + IFNG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1 + 
##     IFNAR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3 + IFNAR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2 + IFITM3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1 + IFITM2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1 + IFITM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6 + IFIT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44 + IFI6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30 + 
##     IFI44
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27 + IFI30
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5 + IFI27
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1 + IER5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS + IDO1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2 + ICOS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1 + ICAM2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2 + ICAM1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1 + 
##     HYAL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B + HYAL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1 + HSPA12B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1 + HSP90AA1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1 + HSD11B1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A + HPRT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1 + HNF1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2 + 
##     HMGB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A + HK2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE + HIF1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1 + HFE
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC + HEG1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6 + HDC
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3 + HDAC6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2 + HDAC3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1 + 
##     HAVCR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK + HAVCR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH + GZMK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB + GZMH
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA + GZMB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY + GZMA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11 + GNLY
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7 + GNG11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15 + 
##     GEMIN7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5 + GDF15
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4 + GBP5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2 + GBP4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3 + GBP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH + GATA3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN + GAPDH
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1 + FYN
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3 + 
##     FPR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1 + FOXP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1 + FOXO1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS + FOSL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1 + FOS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3 + FN1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A + FLT3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1 + FKBP1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2 + 
##     FJX1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2 + FGFBP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2 + FGD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B + FCRL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A + FCGR2B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G + FCGR2A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A + FCER1G
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR + 
##     FCER1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG + FCAR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS + FASLG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A + FAS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD + FAM30A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3 + FADD
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2 + F3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C + EZH2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1 + 
##     EVA1C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG + ERRFI1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO + ERG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1 + EPO
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES + EPAS1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG + EOMES
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3 + ENG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3 + EMP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1 + 
##     EHD3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR + EGR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1 + EGFR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA + EEF1A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3 + EDA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2 + EBI3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A + DUSP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1 + DNMT3A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1 + 
##     DNMT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50 + DEFB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12 + DDX50
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6 + DCAF12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5 + CXCR6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4 + CXCR5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3 + CXCR4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9 + 
##     CXCR3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8 + CXCL9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5 + CXCL8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2 + CXCL5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16 + CXCL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14 + CXCL16
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13 + CXCL14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12 + 
##     CXCL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11 + CXCL12
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10 + CXCL11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1 + CXCL10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1 + CX3CR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW + CX3CL1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS + CTSW
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL + 
##     CTSS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1 + CTSL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4 + CTNNB1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R + CTLA4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3 + CSF3R
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB + CSF3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2 + CSF2RB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1 + CSF2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP + 
##     CSF1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2 + CRP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP + CRIP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1 + CRHBP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3 + CR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5 + CPA3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4 + COL4A5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3 + COL4A4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1 + 
##     COL4A3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1 + COL4A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1 + COL3A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1 + COL1A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1 + COL13A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C + CMKLR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4 + CLEC4C
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA + 
##     CITED4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK + CIITA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10 + CHUK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H + CHCHD10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS + CH25H
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR + CGAS
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI + CFLAR
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH + CFI
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB + 
##     CFH
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP + CFB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3 + CETP
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A + CEACAM3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5 + CDKN1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13 + CDH5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96 + CDH13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B + CD96
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A + 
##     CD8B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86 + CD8A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84 + CD86
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83 + CD84
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82 + CD83
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81 + CD82
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80 + CD81
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A + CD80
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74 + 
##     CD79A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72 + CD74
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70 + CD72
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7 + CD70
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69 + CD7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68 + CD69
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6 + CD68
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59 + CD6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58 + CD59
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55 + 
##     CD58
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5 + CD55
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48 + CD5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47 + CD48
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46 + CD47
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44 + CD46
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG + CD44
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40 + CD40LG
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4 + CD40
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G + 
##     CD4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E + CD3G
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D + CD3E
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38 + CD3D
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34 + CD38
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28 + CD34
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276 + CD28
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274 + CD276
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27 + 
##     CD274
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247 + CD27
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244 + CD247
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24 + CD244
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22 + CD24
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207 + CD22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2 + CD207
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D + CD2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19 + 
##     CD1D
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163 + CD19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160 + CD163
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14 + CD160
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7 + CD14
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6 + CCR7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5 + CCR6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4 + CCR5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3 + 
##     CCR4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2 + CCR3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10 + CCR2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1 + CCR10
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5 + CCR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4 + CCL5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22 + CCL4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21 + CCL22
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20 + 
##     CCL21
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2 + CCL20
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19 + CCL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18 + CCL19
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13 + CCL18
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1 + CCL13
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8 + CAV1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4 + CASP8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3 + 
##     CASP4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1 + CASP3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8 + CASP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16 + CARD8
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6 + CARD16
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9 + CALHM6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1 + C9
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5 + C5AR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1 + 
##     C5
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3 + C3AR1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S + C3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB + C1S
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA + C1QB
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA + C1QA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK + BTLA
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2 + BTK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2 + BTG2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1 + 
##     BST2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B + BRWD1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A + BMPR1B
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER + BMPR1A
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7 + BMPER
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6 + BMP7
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4 + BMP6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2 + BMP4
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK + 
##     BMP2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK + BLNK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3 + BLK
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF + BIRC3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6 + BDNF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3 + BCL6
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11 + BCL3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1 + BCL2L11
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1 + 
##     BCL2L1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2 + BCL2A1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX + BCL2
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3 + BAX
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF + BATF3
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1 + BATF
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1 + BASP1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M + B3GAT1
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL + 
##     B2M
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3 + AXL
## 
## 
## Step:  AIC=90
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AICDA + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + 
##     APOE + APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - AICDA     1 2.6107e-10  88
## - APOL1     1 2.6150e-10  88
## - AOAH      1 2.6205e-10  88
## - ABCC2     1 2.6245e-10  88
## - ARG1      1 2.6263e-10  88
## - ADAMDEC1  1 2.6279e-10  88
## - ADGRL4    1 2.6504e-10  88
## - AKR1C3    1 2.6596e-10  88
## - ADAMTS1   1 2.6641e-10  88
## - APOLD1    1 2.6680e-10  88
## - AQP1      1 2.6711e-10  88
## - ANXA1     1 2.6767e-10  88
## - ACKR1     1 2.6807e-10  88
## - ANKRD22   1 2.6827e-10  88
## - AQP2      1 2.6889e-10  88
## - AHR       1 2.7012e-10  88
## - ALAS1     1 2.7106e-10  88
## - ABCB1     1 2.7152e-10  88
## - ADAM8     1 2.7231e-10  88
## - AIRE      1 2.7340e-10  88
## - ATF3      1 2.7480e-10  88
## - ACVRL1    1 2.7697e-10  88
## - APOE      1 2.7804e-10  88
## - ANKRD1    1 2.7961e-10  88
## - ALOX5     1 2.8150e-10  88
## - ACTA2     1 2.8232e-10  88
## - ABCE1     1 2.8263e-10  88
## - ASB15     1 2.8441e-10  88
## - ARG2      1 2.8447e-10  88
## - ACVR1     1 2.8494e-10  88
## - AIM2      1 2.8863e-10  88
## - ATM       1 2.8874e-10  88
## - AREG      1 2.9008e-10  88
## - ARRB2     1 2.9101e-10  88
## - AGT       1 2.9458e-10  88
## - ALDH3A2   1 2.9681e-10  88
## - ABCA1     1 2.9874e-10  88
## - APOL2     1 3.1757e-10  88
## - AGER      1 3.1875e-10  88
## - AGR2      1 3.2152e-10  88
## - ARHGDIB   1 3.2916e-10  88
## - ALOX15    1 3.6096e-10  88
## - ATXN3     1 3.8891e-10  88
## - AGR3      1 4.3442e-10  88
## <none>        2.6107e-10  90
## 
## Step:  AIC=88
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + 
##     APOL1 + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + 
##     ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - APOL1     1 2.6159e-10  86
## - AOAH      1 2.6221e-10  86
## - ABCC2     1 2.6283e-10  86
## - ADAMDEC1  1 2.6297e-10  86
## - ADGRL4    1 2.6507e-10  86
## - ARG1      1 2.6602e-10  86
## - AKR1C3    1 2.6682e-10  86
## - APOLD1    1 2.6742e-10  86
## - ADAMTS1   1 2.6804e-10  86
## - ANXA1     1 2.6870e-10  86
## - ANKRD22   1 2.6881e-10  86
## - ACKR1     1 2.6982e-10  86
## - AQP1      1 2.7172e-10  86
## - ABCB1     1 2.7181e-10  86
## - ADAM8     1 2.7262e-10  86
## - AHR       1 2.7349e-10  86
## - ATF3      1 2.7873e-10  86
## - ALAS1     1 2.7946e-10  86
## - APOE      1 2.8016e-10  86
## - AQP2      1 2.8022e-10  86
## - ACVRL1    1 2.8136e-10  86
## - ANKRD1    1 2.8232e-10  86
## - AIRE      1 2.8523e-10  86
## - ACVR1     1 2.8594e-10  86
## - ARG2      1 2.8613e-10  86
## - AIM2      1 2.8867e-10  86
## - ALOX5     1 2.8941e-10  86
## - ABCE1     1 2.9008e-10  86
## - AREG      1 2.9297e-10  86
## - ASB15     1 2.9416e-10  86
## - AGT       1 2.9852e-10  86
## - ARRB2     1 3.0016e-10  86
## - ALDH3A2   1 3.0139e-10  86
## - ATM       1 3.0927e-10  86
## - APOL2     1 3.2084e-10  86
## - AGER      1 3.2246e-10  86
## - AGR2      1 3.2496e-10  86
## - ACTA2     1 3.2564e-10  86
## - ABCA1     1 3.3119e-10  86
## - ARHGDIB   1 3.5108e-10  86
## - ALOX15    1 3.7409e-10  86
## - ATXN3     1 3.8935e-10  86
## - AGR3      1 4.8979e-10  86
## <none>        2.6107e-10  88
## 
## Step:  AIC=86
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + AOAH + APOE + 
##     APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - AOAH      1 2.6282e-10  84
## - ABCC2     1 2.6309e-10  84
## - ADAMDEC1  1 2.6393e-10  84
## - ADGRL4    1 2.6548e-10  84
## - ARG1      1 2.6716e-10  84
## - ADAMTS1   1 2.6805e-10  84
## - APOLD1    1 2.6852e-10  84
## - ANKRD22   1 2.6877e-10  84
## - AKR1C3    1 2.6935e-10  84
## - ACKR1     1 2.6980e-10  84
## - AQP1      1 2.7177e-10  84
## - ABCB1     1 2.7257e-10  84
## - ANXA1     1 2.7294e-10  84
## - ADAM8     1 2.7432e-10  84
## - AHR       1 2.7584e-10  84
## - ATF3      1 2.7962e-10  84
## - APOE      1 2.8135e-10  84
## - ACVRL1    1 2.8138e-10  84
## - ACVR1     1 2.8668e-10  84
## - AIRE      1 2.8692e-10  84
## - AQP2      1 2.8741e-10  84
## - ARG2      1 2.8765e-10  84
## - ANKRD1    1 2.8838e-10  84
## - ABCE1     1 2.9172e-10  84
## - ALAS1     1 2.9178e-10  84
## - ALOX5     1 2.9357e-10  84
## - ASB15     1 3.0096e-10  84
## - AREG      1 3.0190e-10  84
## - AIM2      1 3.0220e-10  84
## - ALDH3A2   1 3.0251e-10  84
## - ATM       1 3.1089e-10  84
## - ACTA2     1 3.2597e-10  84
## - AGR2      1 3.2603e-10  84
## - AGT       1 3.3046e-10  84
## - APOL2     1 3.3295e-10  84
## - ABCA1     1 3.3414e-10  84
## - AGER      1 3.3652e-10  84
## - ARRB2     1 3.4069e-10  84
## - ALOX15    1 3.7772e-10  84
## - ARHGDIB   1 3.8381e-10  84
## - ATXN3     1 4.2905e-10  84
## - AGR3      1 5.1147e-10  84
## <none>        2.6159e-10  86
## 
## Step:  AIC=84
## Class ~ ABCA1 + ABCB1 + ABCC2 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + 
##     ACVRL1 + ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + APOE + APOL2 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + 
##     ASB15 + ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - ABCC2     1 2.6364e-10  82
## - ADAMDEC1  1 2.6429e-10  82
## - ADGRL4    1 2.6633e-10  82
## - ARG1      1 2.6716e-10  82
## - ADAMTS1   1 2.6805e-10  82
## - APOLD1    1 2.6927e-10  82
## - AKR1C3    1 2.6989e-10  82
## - ANKRD22   1 2.7053e-10  82
## - ACKR1     1 2.7193e-10  82
## - ABCB1     1 2.7284e-10  82
## - ANXA1     1 2.7302e-10  82
## - AQP1      1 2.7345e-10  82
## - ADAM8     1 2.7536e-10  82
## - AHR       1 2.8130e-10  82
## - APOE      1 2.8147e-10  82
## - ACVRL1    1 2.8160e-10  82
## - ATF3      1 2.8402e-10  82
## - AQP2      1 2.8797e-10  82
## - ARG2      1 2.8852e-10  82
## - ANKRD1    1 2.9016e-10  82
## - ACVR1     1 2.9117e-10  82
## - ALAS1     1 2.9207e-10  82
## - ABCE1     1 2.9240e-10  82
## - AIRE      1 2.9331e-10  82
## - AREG      1 3.0192e-10  82
## - AIM2      1 3.0362e-10  82
## - ALDH3A2   1 3.0394e-10  82
## - ALOX5     1 3.0445e-10  82
## - ATM       1 3.1293e-10  82
## - ASB15     1 3.1807e-10  82
## - ACTA2     1 3.2688e-10  82
## - APOL2     1 3.3320e-10  82
## - AGR2      1 3.3782e-10  82
## - AGER      1 3.3786e-10  82
## - AGT       1 3.3800e-10  82
## - ARRB2     1 3.4128e-10  82
## - ABCA1     1 3.4598e-10  82
## - ARHGDIB   1 3.8405e-10  82
## - ALOX15    1 4.2208e-10  82
## - ATXN3     1 4.3394e-10  82
## - AGR3      1 5.2245e-10  82
## <none>        2.6282e-10  84
## 
## Step:  AIC=82
## Class ~ ABCA1 + ABCB1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMDEC1 + ADAMTS1 + ADGRL4 + AGER + AGR2 + AGR3 + 
##     AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + APOE + APOL2 + APOLD1 + 
##     AQP1 + AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ASB15 + 
##     ATF3 + ATM + ATXN3
## 
##            Df   Deviance AIC
## - ADAMDEC1  1 2.6470e-10  80
## - ADGRL4    1 2.6734e-10  80
## - ARG1      1 2.6802e-10  80
## - ADAMTS1   1 2.6876e-10  80
## - APOLD1    1 2.6935e-10  80
## - ANKRD22   1 2.7043e-10  80
## - AKR1C3    1 2.7058e-10  80
## - ACKR1     1 2.7177e-10  80
## - ABCB1     1 2.7308e-10  80
## - ANXA1     1 2.7334e-10  80
## - AQP1      1 2.7363e-10  80
## - ADAM8     1 2.7577e-10  80
## - AHR       1 2.8202e-10  80
## - APOE      1 2.8389e-10  80
## - ATF3      1 2.8399e-10  80
## - ACVRL1    1 2.8659e-10  80
## - ARG2      1 2.9020e-10  80
## - AQP2      1 2.9052e-10  80
## - ACVR1     1 2.9188e-10  80
## - ALAS1     1 2.9275e-10  80
## - AIRE      1 2.9379e-10  80
## - ABCE1     1 2.9858e-10  80
## - AREG      1 3.0204e-10  80
## - AIM2      1 3.0376e-10  80
## - ANKRD1    1 3.0552e-10  80
## - ALOX5     1 3.0861e-10  80
## - ALDH3A2   1 3.1136e-10  80
## - ATM       1 3.1370e-10  80
## - ACTA2     1 3.2707e-10  80
## - APOL2     1 3.3642e-10  80
## - AGER      1 3.3999e-10  80
## - ARRB2     1 3.4143e-10  80
## - AGT       1 3.4562e-10  80
## - ABCA1     1 3.4933e-10  80
## - ASB15     1 3.5293e-10  80
## - AGR2      1 3.6133e-10  80
## - ARHGDIB   1 3.9680e-10  80
## - ALOX15    1 4.4111e-10  80
## - ATXN3     1 4.5861e-10  80
## - AGR3      1 5.5250e-10  80
## <none>        2.6364e-10  82
## 
## Step:  AIC=80
## Class ~ ABCA1 + ABCB1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMTS1 + ADGRL4 + AGER + AGR2 + AGR3 + AGT + AHR + 
##     AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + 
##     ANKRD1 + ANKRD22 + ANXA1 + APOE + APOL2 + APOLD1 + AQP1 + 
##     AQP2 + AREG + ARG1 + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + 
##     ATM + ATXN3
## 
##           Df   Deviance AIC
## - ADGRL4   1 2.6737e-10  78
## - ARG1     1 2.6882e-10  78
## - ADAMTS1  1 2.6914e-10  78
## - AKR1C3   1 2.7269e-10  78
## - ABCB1    1 2.7326e-10  78
## - ACKR1    1 2.7360e-10  78
## - ANXA1    1 2.7374e-10  78
## - APOLD1   1 2.7424e-10  78
## - ADAM8    1 2.7611e-10  78
## - AQP1     1 2.7780e-10  78
## - AHR      1 2.8240e-10  78
## - APOE     1 2.8414e-10  78
## - ANKRD22  1 2.8507e-10  78
## - AQP2     1 2.9208e-10  78
## - ACVR1    1 2.9292e-10  78
## - ALAS1    1 2.9362e-10  78
## - ARG2     1 2.9366e-10  78
## - ATF3     1 2.9901e-10  78
## - ABCE1    1 3.0018e-10  78
## - AIRE     1 3.0214e-10  78
## - AREG     1 3.0402e-10  78
## - ACVRL1   1 3.0448e-10  78
## - ALOX5    1 3.0880e-10  78
## - AIM2     1 3.1378e-10  78
## - ANKRD1   1 3.1683e-10  78
## - ATM      1 3.1817e-10  78
## - ACTA2    1 3.3143e-10  78
## - ALDH3A2  1 3.4019e-10  78
## - AGT      1 3.5104e-10  78
## - ARRB2    1 3.6070e-10  78
## - ASB15    1 3.6103e-10  78
## - APOL2    1 3.7715e-10  78
## - ABCA1    1 3.7744e-10  78
## - AGER     1 3.8944e-10  78
## - ARHGDIB  1 3.9768e-10  78
## - AGR2     1 4.0623e-10  78
## - ALOX15   1 4.6943e-10  78
## - ATXN3    1 4.8539e-10  78
## - AGR3     1 5.6058e-10  78
## <none>       2.6470e-10  80
## 
## Step:  AIC=78
## Class ~ ABCA1 + ABCB1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMTS1 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + 
##     AIRE + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + ANXA1 + APOE + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + 
##     ARG1 + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ARG1     1 2.6928e-10  76
## - ADAMTS1  1 2.6959e-10  76
## - ABCB1    1 2.7342e-10  76
## - ANXA1    1 2.7354e-10  76
## - AKR1C3   1 2.7614e-10  76
## - ACKR1    1 2.7680e-10  76
## - AQP1     1 2.7773e-10  76
## - ADAM8    1 2.7940e-10  76
## - APOE     1 2.8580e-10  76
## - APOLD1   1 2.8659e-10  76
## - AHR      1 2.8740e-10  76
## - ALAS1    1 2.9386e-10  76
## - ACVR1    1 2.9428e-10  76
## - ANKRD22  1 2.9614e-10  76
## - ABCE1    1 3.0450e-10  76
## - ACVRL1   1 3.0481e-10  76
## - AREG     1 3.0543e-10  76
## - AIRE     1 3.1108e-10  76
## - AQP2     1 3.1484e-10  76
## - ATF3     1 3.1695e-10  76
## - ATM      1 3.2055e-10  76
## - ARG2     1 3.3028e-10  76
## - ACTA2    1 3.3630e-10  76
## - ANKRD1   1 3.4147e-10  76
## - ALOX5    1 3.4843e-10  76
## - ALDH3A2  1 3.5350e-10  76
## - ASB15    1 3.6584e-10  76
## - AIM2     1 3.7083e-10  76
## - AGT      1 3.8192e-10  76
## - APOL2    1 3.8335e-10  76
## - ABCA1    1 4.0141e-10  76
## - AGR2     1 4.0840e-10  76
## - ARHGDIB  1 4.3207e-10  76
## - ARRB2    1 4.5186e-10  76
## - AGER     1 4.7952e-10  76
## - ALOX15   1 5.3398e-10  76
## - ATXN3    1 5.7640e-10  76
## - AGR3     1 8.6263e-10  76
## <none>       2.6737e-10  78
## 
## Step:  AIC=76
## Class ~ ABCA1 + ABCB1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + ADAMTS1 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + 
##     AIRE + AKR1C3 + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + ANXA1 + APOE + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ADAMTS1  1 2.6966e-10  74
## - ABCB1    1 2.7430e-10  74
## - ANXA1    1 2.7656e-10  74
## - ADAM8    1 2.7985e-10  74
## - ACKR1    1 2.8491e-10  74
## - AQP1     1 2.8550e-10  74
## - AKR1C3   1 2.8953e-10  74
## - AHR      1 2.9260e-10  74
## - APOLD1   1 2.9293e-10  74
## - APOE     1 2.9455e-10  74
## - ACVR1    1 3.0183e-10  74
## - ANKRD22  1 3.0536e-10  74
## - ACVRL1   1 3.0554e-10  74
## - AREG     1 3.0694e-10  74
## - ABCE1    1 3.1578e-10  74
## - AQP2     1 3.1745e-10  74
## - AIRE     1 3.1950e-10  74
## - ALAS1    1 3.2442e-10  74
## - ATF3     1 3.2601e-10  74
## - ATM      1 3.2928e-10  74
## - ARG2     1 3.4365e-10  74
## - ANKRD1   1 3.4587e-10  74
## - ALDH3A2  1 3.5793e-10  74
## - ALOX5    1 3.6288e-10  74
## - ACTA2    1 3.7077e-10  74
## - ASB15    1 3.8050e-10  74
## - AIM2     1 3.9326e-10  74
## - AGT      1 4.0146e-10  74
## - ABCA1    1 4.0154e-10  74
## - APOL2    1 4.0274e-10  74
## - AGR2     1 4.1122e-10  74
## - ARHGDIB  1 4.4578e-10  74
## - ARRB2    1 4.5482e-10  74
## - AGER     1 4.8181e-10  74
## - ATXN3    1 5.8183e-10  74
## - ALOX15   1 5.9007e-10  74
## - AGR3     1 1.0029e-09  74
## <none>       2.6928e-10  76
## 
## Step:  AIC=74
## Class ~ ABCA1 + ABCB1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + 
##     ADAM8 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + 
##     ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + 
##     APOE + APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ABCB1    1 2.7462e-10  72
## - ANXA1    1 2.7672e-10  72
## - ADAM8    1 2.8259e-10  72
## - ACKR1    1 2.8535e-10  72
## - AQP1     1 2.8552e-10  72
## - AKR1C3   1 2.9019e-10  72
## - AHR      1 2.9274e-10  72
## - APOLD1   1 3.0349e-10  72
## - APOE     1 3.0441e-10  72
## - ACVRL1   1 3.0545e-10  72
## - AREG     1 3.0925e-10  72
## - ANKRD22  1 3.0931e-10  72
## - ACVR1    1 3.1412e-10  72
## - AIRE     1 3.1944e-10  72
## - ABCE1    1 3.1980e-10  72
## - AQP2     1 3.2071e-10  72
## - ATF3     1 3.2692e-10  72
## - ATM      1 3.2992e-10  72
## - ALAS1    1 3.3877e-10  72
## - ANKRD1   1 3.4666e-10  72
## - ARG2     1 3.4785e-10  72
## - ALDH3A2  1 3.6238e-10  72
## - ALOX5    1 3.6831e-10  72
## - ACTA2    1 3.7821e-10  72
## - AIM2     1 3.9410e-10  72
## - AGT      1 4.0460e-10  72
## - ABCA1    1 4.3535e-10  72
## - ASB15    1 4.4307e-10  72
## - AGR2     1 4.4466e-10  72
## - APOL2    1 4.7270e-10  72
## - AGER     1 4.9127e-10  72
## - ARRB2    1 4.9497e-10  72
## - ARHGDIB  1 5.2424e-10  72
## - ATXN3    1 5.8102e-10  72
## - ALOX15   1 6.5419e-10  72
## - AGR3     1 1.6128e-09  72
## <none>       2.6966e-10  74
## 
## Step:  AIC=72
## Class ~ ABCA1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + ADAM8 + 
##     AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + ANXA1 + APOE + 
##     APOL2 + APOLD1 + AQP1 + AQP2 + AREG + ARG2 + ARHGDIB + ARRB2 + 
##     ASB15 + ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ANXA1    1 2.7887e-10  70
## - ACKR1    1 2.8768e-10  70
## - ADAM8    1 2.8831e-10  70
## - AQP1     1 2.9061e-10  70
## - AHR      1 2.9477e-10  70
## - AKR1C3   1 2.9546e-10  70
## - APOE     1 3.0461e-10  70
## - ANKRD22  1 3.0936e-10  70
## - AREG     1 3.0936e-10  70
## - APOLD1   1 3.1082e-10  70
## - ACVRL1   1 3.1837e-10  70
## - ACVR1    1 3.2091e-10  70
## - AQP2     1 3.2161e-10  70
## - ATF3     1 3.2949e-10  70
## - ABCE1    1 3.3658e-10  70
## - AIRE     1 3.3754e-10  70
## - ATM      1 3.4641e-10  70
## - ANKRD1   1 3.5132e-10  70
## - ALAS1    1 3.5419e-10  70
## - ALDH3A2  1 3.6950e-10  70
## - ARG2     1 3.7020e-10  70
## - ALOX5    1 3.7287e-10  70
## - AIM2     1 3.9536e-10  70
## - ACTA2    1 3.9907e-10  70
## - AGT      1 4.0473e-10  70
## - ABCA1    1 4.4098e-10  70
## - ASB15    1 4.4455e-10  70
## - AGR2     1 4.6071e-10  70
## - APOL2    1 4.8052e-10  70
## - ARRB2    1 5.0010e-10  70
## - AGER     1 5.1047e-10  70
## - ARHGDIB  1 5.2741e-10  70
## - ATXN3    1 6.0878e-10  70
## - ALOX15   1 6.9254e-10  70
## - AGR3     1 1.6210e-09  70
## <none>       2.7462e-10  72
## 
## Step:  AIC=70
## Class ~ ABCA1 + ABCE1 + ACKR1 + ACTA2 + ACVR1 + ACVRL1 + ADAM8 + 
##     AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + 
##     ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ACKR1    1 2.8800e-10  68
## - ADAM8    1 2.9014e-10  68
## - AQP1     1 2.9100e-10  68
## - AKR1C3   1 2.9904e-10  68
## - APOE     1 3.0492e-10  68
## - AHR      1 3.0989e-10  68
## - APOLD1   1 3.1295e-10  68
## - AREG     1 3.1634e-10  68
## - ACVR1    1 3.2234e-10  68
## - AQP2     1 3.2364e-10  68
## - ACVRL1   1 3.2408e-10  68
## - ANKRD22  1 3.2842e-10  68
## - ATF3     1 3.3975e-10  68
## - AIRE     1 3.4225e-10  68
## - ABCE1    1 3.4342e-10  68
## - ATM      1 3.5376e-10  68
## - ARG2     1 3.7287e-10  68
## - ALAS1    1 3.8098e-10  68
## - ANKRD1   1 3.9934e-10  68
## - ALOX5    1 4.0008e-10  68
## - ALDH3A2  1 4.0390e-10  68
## - AGT      1 4.0943e-10  68
## - ACTA2    1 4.3348e-10  68
## - AIM2     1 4.4900e-10  68
## - ASB15    1 4.7350e-10  68
## - ABCA1    1 4.7531e-10  68
## - APOL2    1 4.9457e-10  68
## - ARRB2    1 5.2812e-10  68
## - AGER     1 5.6105e-10  68
## - AGR2     1 5.6884e-10  68
## - ATXN3    1 6.5202e-10  68
## - ALOX15   1 6.9347e-10  68
## - ARHGDIB  1 7.6629e-10  68
## - AGR3     1 2.3148e-09  68
## <none>       2.7887e-10  70
## 
## Step:  AIC=68
## Class ~ ABCA1 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + ADAM8 + AGER + 
##     AGR2 + AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + 
##     APOLD1 + AQP1 + AQP2 + AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + 
##     ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ADAM8    1 2.9499e-10  66
## - AKR1C3   1 2.9953e-10  66
## - AQP1     1 3.0309e-10  66
## - AHR      1 3.1028e-10  66
## - APOLD1   1 3.1288e-10  66
## - APOE     1 3.1910e-10  66
## - ANKRD22  1 3.2843e-10  66
## - ACVR1    1 3.2847e-10  66
## - AQP2     1 3.3874e-10  66
## - ACVRL1   1 3.4244e-10  66
## - ABCE1    1 3.5136e-10  66
## - ATF3     1 3.5290e-10  66
## - ATM      1 3.5404e-10  66
## - AIRE     1 3.6659e-10  66
## - AREG     1 3.7744e-10  66
## - ALAS1    1 3.8313e-10  66
## - ARG2     1 3.8826e-10  66
## - ALDH3A2  1 4.0908e-10  66
## - ALOX5    1 4.4334e-10  66
## - ACTA2    1 4.4781e-10  66
## - AIM2     1 4.5287e-10  66
## - AGT      1 4.5565e-10  66
## - ANKRD1   1 4.5638e-10  66
## - ASB15    1 4.7586e-10  66
## - APOL2    1 5.1782e-10  66
## - ABCA1    1 5.5075e-10  66
## - AGER     1 5.6855e-10  66
## - ARRB2    1 5.8592e-10  66
## - ATXN3    1 6.5388e-10  66
## - AGR2     1 7.0699e-10  66
## - ALOX15   1 7.4124e-10  66
## - ARHGDIB  1 8.7361e-10  66
## - AGR3     1 2.3210e-09  66
## <none>       2.8800e-10  68
## 
## Step:  AIC=66
## Class ~ ABCA1 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + APOLD1 + 
##     AQP1 + AQP2 + AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + 
##     ATM + ATXN3
## 
##           Df  Deviance AIC
## - AQP1     1 3.064e-10  64
## - AKR1C3   1 3.132e-10  64
## - APOE     1 3.387e-10  64
## - AQP2     1 3.388e-10  64
## - AHR      1 3.474e-10  64
## - ACVR1    1 3.480e-10  64
## - ATM      1 3.541e-10  64
## - ABCE1    1 3.552e-10  64
## - ACVRL1   1 3.559e-10  64
## - AIRE     1 3.692e-10  64
## - ANKRD22  1 3.755e-10  64
## - AREG     1 3.812e-10  64
## - ALAS1    1 3.844e-10  64
## - APOLD1   1 3.862e-10  64
## - ATF3     1 3.972e-10  64
## - ARG2     1 4.058e-10  64
## - ALDH3A2  1 4.149e-10  64
## - ACTA2    1 4.551e-10  64
## - ALOX5    1 4.584e-10  64
## - ANKRD1   1 4.604e-10  64
## - ASB15    1 5.046e-10  64
## - APOL2    1 5.593e-10  64
## - ABCA1    1 6.199e-10  64
## - AGT      1 6.277e-10  64
## - ARRB2    1 6.316e-10  64
## - AIM2     1 6.719e-10  64
## - AGER     1 7.116e-10  64
## - ATXN3    1 7.378e-10  64
## - ALOX15   1 7.453e-10  64
## - AGR2     1 8.793e-10  64
## - ARHGDIB  1 8.873e-10  64
## - AGR3     1 4.515e-09  64
## <none>       2.950e-10  66
## 
## Step:  AIC=64
## Class ~ ABCA1 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + AKR1C3 + ALAS1 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + APOLD1 + 
##     AQP2 + AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + 
##     ATXN3
## 
##           Df   Deviance AIC
## - AKR1C3   1 3.2370e-10  62
## - AQP2     1 3.3950e-10  62
## - APOE     1 3.4760e-10  62
## - ACVR1    1 3.5130e-10  62
## - ACVRL1   1 3.5690e-10  62
## - ATM      1 3.6270e-10  62
## - AHR      1 3.6280e-10  62
## - ABCE1    1 3.7160e-10  62
## - AREG     1 3.8290e-10  62
## - AIRE     1 3.8470e-10  62
## - APOLD1   1 3.9130e-10  62
## - ALAS1    1 4.0200e-10  62
## - ARG2     1 4.0670e-10  62
## - ANKRD22  1 4.1040e-10  62
## - ALDH3A2  1 4.4350e-10  62
## - ATF3     1 4.4810e-10  62
## - ANKRD1   1 4.6250e-10  62
## - ALOX5    1 4.7260e-10  62
## - ACTA2    1 4.7820e-10  62
## - ASB15    1 5.2070e-10  62
## - APOL2    1 5.6810e-10  62
## - AGT      1 6.7900e-10  62
## - ABCA1    1 7.0270e-10  62
## - ARRB2    1 7.2490e-10  62
## - AIM2     1 7.4050e-10  62
## - ATXN3    1 7.4120e-10  62
## - ALOX15   1 7.5300e-10  62
## - AGER     1 7.7040e-10  62
## - ARHGDIB  1 8.9520e-10  62
## - AGR2     1 9.7910e-10  62
## - AGR3     1 4.7465e-09  62
## <none>       3.0640e-10  64
## 
## Step:  AIC=62
## Class ~ ABCA1 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + APOLD1 + AQP2 + 
##     AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - AQP2     1 3.5780e-10  60
## - ACVRL1   1 3.6110e-10  60
## - ATM      1 3.6280e-10  60
## - AHR      1 3.6830e-10  60
## - ABCE1    1 3.7360e-10  60
## - APOE     1 3.7780e-10  60
## - ACVR1    1 3.8270e-10  60
## - AIRE     1 3.8630e-10  60
## - APOLD1   1 3.9160e-10  60
## - ALAS1    1 4.0280e-10  60
## - ANKRD22  1 4.1700e-10  60
## - ARG2     1 4.2320e-10  60
## - AREG     1 4.3430e-10  60
## - ATF3     1 4.4920e-10  60
## - ALDH3A2  1 4.5350e-10  60
## - ALOX5    1 4.7610e-10  60
## - ANKRD1   1 5.0290e-10  60
## - ACTA2    1 5.0950e-10  60
## - ASB15    1 5.6560e-10  60
## - APOL2    1 5.7260e-10  60
## - AGT      1 7.0280e-10  60
## - ABCA1    1 7.5760e-10  60
## - AGER     1 7.7480e-10  60
## - ARRB2    1 8.1800e-10  60
## - ATXN3    1 8.4940e-10  60
## - ARHGDIB  1 9.4100e-10  60
## - AIM2     1 9.7420e-10  60
## - AGR2     1 1.0152e-09  60
## - ALOX15   1 1.5903e-09  60
## - AGR3     1 1.1168e-08  60
## <none>       3.2370e-10  62
## 
## Step:  AIC=60
## Class ~ ABCA1 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + APOLD1 + AREG + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATM + ATXN3
## 
##           Df   Deviance AIC
## - ATM      1 3.8900e-10  58
## - ABCE1    1 3.9100e-10  58
## - APOE     1 3.9400e-10  58
## - ACVRL1   1 3.9900e-10  58
## - ACVR1    1 4.1000e-10  58
## - ALAS1    1 4.3400e-10  58
## - AHR      1 4.5400e-10  58
## - AIRE     1 4.7000e-10  58
## - ACTA2    1 5.1600e-10  58
## - ANKRD1   1 5.3700e-10  58
## - AREG     1 5.5900e-10  58
## - ALDH3A2  1 5.6700e-10  58
## - ARG2     1 5.7200e-10  58
## - ASB15    1 5.9300e-10  58
## - ALOX5    1 5.9300e-10  58
## - APOL2    1 5.9700e-10  58
## - ANKRD22  1 7.6700e-10  58
## - APOLD1   1 7.7100e-10  58
## - ARRB2    1 8.4900e-10  58
## - AGT      1 8.5000e-10  58
## - ABCA1    1 9.0700e-10  58
## - AGR2     1 1.0260e-09  58
## - AGER     1 1.1200e-09  58
## - ARHGDIB  1 1.1950e-09  58
## - AIM2     1 1.5710e-09  58
## - ALOX15   1 1.6080e-09  58
## - ATF3     1 1.9220e-09  58
## - ATXN3    1 1.9710e-09  58
## - AGR3     1 1.5065e-07  58
## <none>       3.5800e-10  60
## 
## Step:  AIC=58
## Class ~ ABCA1 + ABCE1 + ACTA2 + ACVR1 + ACVRL1 + AGER + AGR2 + 
##     AGR3 + AGT + AHR + AIM2 + AIRE + ALAS1 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + APOE + APOL2 + APOLD1 + AREG + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ABCE1    1    0.000 56.000
## - APOE     1    0.000 56.000
## - ACVRL1   1    0.000 56.000
## - ACVR1    1    0.000 56.000
## - AIRE     1    0.000 56.000
## - AHR      1    0.000 56.000
## - ALAS1    1    0.000 56.000
## - ACTA2    1    0.000 56.000
## - ANKRD1   1    0.000 56.000
## - ALOX5    1    0.000 56.000
## - AREG     1    0.000 56.000
## - ASB15    1    0.000 56.000
## - APOL2    1    0.000 56.000
## - ALDH3A2  1    0.000 56.000
## - ARG2     1    0.000 56.000
## - ARRB2    1    0.000 56.000
## - APOLD1   1    0.000 56.000
## - ANKRD22  1    0.000 56.000
## - AGT      1    0.000 56.000
## - ABCA1    1    0.000 56.000
## - AGR2     1    0.000 56.000
## - ARHGDIB  1    0.000 56.000
## - AIM2     1    0.000 56.000
## - ALOX15   1    0.000 56.000
## - ATXN3    1    0.000 56.000
## - AGER     1    0.000 56.000
## - ATF3     1    0.000 56.000
## <none>          0.000 58.000
## - AGR3     1   36.831 92.831
## 
## Step:  AIC=56
## Class ~ ABCA1 + ACTA2 + ACVR1 + ACVRL1 + AGER + AGR2 + AGR3 + 
##     AGT + AHR + AIM2 + AIRE + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + 
##     ANKRD1 + ANKRD22 + APOE + APOL2 + APOLD1 + AREG + ARG2 + 
##     ARHGDIB + ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ACVRL1   1    0.000 54.000
## - APOE     1    0.000 54.000
## - ALAS1    1    0.000 54.000
## - AHR      1    0.000 54.000
## - ACTA2    1    0.000 54.000
## - ACVR1    1    0.000 54.000
## - AIRE     1    0.000 54.000
## - ANKRD1   1    0.000 54.000
## - AREG     1    0.000 54.000
## - ALDH3A2  1    0.000 54.000
## - APOL2    1    0.000 54.000
## - ASB15    1    0.000 54.000
## - ARG2     1    0.000 54.000
## - ALOX5    1    0.000 54.000
## - APOLD1   1    0.000 54.000
## - AGT      1    0.000 54.000
## - AGR2     1    0.000 54.000
## - ANKRD22  1    0.000 54.000
## - ARRB2    1    0.000 54.000
## - AIM2     1    0.000 54.000
## - ABCA1    1    0.000 54.000
## - ARHGDIB  1    0.000 54.000
## - ALOX15   1    0.000 54.000
## - ATXN3    1    0.000 54.000
## - ATF3     1    0.000 54.000
## - AGER     1    0.000 54.000
## <none>          0.000 56.000
## - AGR3     1   41.488 95.488
## 
## Step:  AIC=54
## Class ~ ABCA1 + ACTA2 + ACVR1 + AGER + AGR2 + AGR3 + AGT + AHR + 
##     AIM2 + AIRE + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + APOE + APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + 
##     ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - APOE     1    0.000 52.000
## - ALAS1    1    0.000 52.000
## - ACVR1    1    0.000 52.000
## - AHR      1    0.000 52.000
## - AIRE     1    0.000 52.000
## - ACTA2    1    0.000 52.000
## - ANKRD1   1    0.000 52.000
## - ARG2     1    0.000 52.000
## - ASB15    1    0.000 52.000
## - APOL2    1    0.000 52.000
## - AREG     1    0.000 52.000
## - ALDH3A2  1    0.000 52.000
## - ALOX5    1    0.000 52.000
## - AGR2     1    0.000 52.000
## - ANKRD22  1    0.000 52.000
## - AGT      1    0.000 52.000
## - ARRB2    1    0.000 52.000
## - APOLD1   1    0.000 52.000
## - ABCA1    1    0.000 52.000
## - AIM2     1    0.000 52.000
## - ALOX15   1    0.000 52.000
## - ARHGDIB  1    0.000 52.000
## - ATXN3    1    0.000 52.000
## - ATF3     1    0.000 52.000
## - AGER     1    0.000 52.000
## <none>          0.000 54.000
## - AGR3     1   41.916 93.916
## 
## Step:  AIC=52
## Class ~ ABCA1 + ACTA2 + ACVR1 + AGER + AGR2 + AGR3 + AGT + AHR + 
##     AIM2 + AIRE + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + 
##     ANKRD22 + APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + ARRB2 + 
##     ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ACVR1    1    0.000 50.000
## - ALAS1    1    0.000 50.000
## - ACTA2    1    0.000 50.000
## - AHR      1    0.000 50.000
## - AIRE     1    0.000 50.000
## - ANKRD1   1    0.000 50.000
## - ASB15    1    0.000 50.000
## - ARG2     1    0.000 50.000
## - APOL2    1    0.000 50.000
## - ALOX5    1    0.000 50.000
## - ALDH3A2  1    0.000 50.000
## - AREG     1    0.000 50.000
## - AGR2     1    0.000 50.000
## - ANKRD22  1    0.000 50.000
## - ARRB2    1    0.000 50.000
## - AGT      1    0.000 50.000
## - APOLD1   1    0.000 50.000
## - ABCA1    1    0.000 50.000
## - AIM2     1    0.000 50.000
## - ARHGDIB  1    0.000 50.000
## - ALOX15   1    0.000 50.000
## - ATXN3    1    0.000 50.000
## - ATF3     1    0.000 50.000
## - AGER     1    0.000 50.000
## <none>          0.000 52.000
## - AGR3     1   42.132 92.132
## 
## Step:  AIC=50
## Class ~ ABCA1 + ACTA2 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + 
##     AIRE + ALAS1 + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + 
##     APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + 
##     ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ALAS1    1    0.000 48.000
## - ACTA2    1    0.000 48.000
## - ANKRD1   1    0.000 48.000
## - AIRE     1    0.000 48.000
## - APOL2    1    0.000 48.000
## - ALOX5    1    0.000 48.000
## - ASB15    1    0.000 48.000
## - AREG     1    0.000 48.000
## - AHR      1    0.000 48.000
## - ARG2     1    0.000 48.000
## - ALDH3A2  1    0.000 48.000
## - AGR2     1    0.000 48.000
## - AGT      1    0.000 48.000
## - ARRB2    1    0.000 48.000
## - ANKRD22  1    0.000 48.000
## - APOLD1   1    0.000 48.000
## - ABCA1    1    0.000 48.000
## - ALOX15   1    0.000 48.000
## - ARHGDIB  1    0.000 48.000
## - AIM2     1    0.000 48.000
## - ATXN3    1    0.000 48.000
## - ATF3     1    0.000 48.000
## <none>          0.000 50.000
## - AGER     1   33.334 81.334
## - AGR3     1   43.888 91.888
## 
## Step:  AIC=48
## Class ~ ABCA1 + ACTA2 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + 
##     AIRE + ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOL2 + 
##     APOLD1 + AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ACTA2    1    0.000 46.000
## - ANKRD1   1    0.000 46.000
## - AIRE     1    0.000 46.000
## - AHR      1    0.000 46.000
## - AREG     1    0.000 46.000
## - APOL2    1    0.000 46.000
## - ALOX5    1    0.000 46.000
## - ASB15    1    0.000 46.000
## - ALDH3A2  1    0.000 46.000
## - AGR2     1    0.000 46.000
## - ARG2     1    0.000 46.000
## - AGT      1    0.000 46.000
## - ARRB2    1    0.000 46.000
## - ANKRD22  1    0.000 46.000
## - ABCA1    1    0.000 46.000
## - APOLD1   1    0.000 46.000
## - ALOX15   1    0.000 46.000
## - AIM2     1    0.000 46.000
## - ATF3     1    0.000 46.000
## - ATXN3    1    0.000 46.000
## - ARHGDIB  1    0.000 46.000
## <none>          0.000 48.000
## - AGER     1   37.220 83.220
## - AGR3     1   43.911 89.911
## 
## Step:  AIC=46
## Class ~ ABCA1 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + AIRE + 
##     ALDH3A2 + ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOL2 + APOLD1 + 
##     AREG + ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - AIRE     1     0.00  44.00
## - AHR      1     0.00  44.00
## - APOL2    1     0.00  44.00
## - ANKRD1   1     0.00  44.00
## - ALOX5    1     0.00  44.00
## - ASB15    1     0.00  44.00
## - ALDH3A2  1     0.00  44.00
## - AREG     1     0.00  44.00
## - AGT      1     0.00  44.00
## - ARG2     1     0.00  44.00
## - ARRB2    1     0.00  44.00
## - AGR2     1     0.00  44.00
## - ABCA1    1     0.00  44.00
## - APOLD1   1     0.00  44.00
## - ANKRD22  1     0.00  44.00
## - ALOX15   1     0.00  44.00
## - AIM2     1     0.00  44.00
## - ATF3     1     0.00  44.00
## - ATXN3    1     0.00  44.00
## <none>           0.00  46.00
## - AGER     1    38.64  82.64
## - AGR3     1    46.26  90.26
## - ARHGDIB  1   576.70 620.70
## 
## Step:  AIC=44
## Class ~ ABCA1 + AGER + AGR2 + AGR3 + AGT + AHR + AIM2 + ALDH3A2 + 
##     ALOX15 + ALOX5 + ANKRD1 + ANKRD22 + APOL2 + APOLD1 + AREG + 
##     ARG2 + ARHGDIB + ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - AHR      1     0.00  42.00
## - ASB15    1     0.00  42.00
## - ANKRD1   1     0.00  42.00
## - APOL2    1     0.00  42.00
## - ALOX5    1     0.00  42.00
## - ALDH3A2  1     0.00  42.00
## - AGT      1     0.00  42.00
## - ARRB2    1     0.00  42.00
## - AGR2     1     0.00  42.00
## - APOLD1   1     0.00  42.00
## - ANKRD22  1     0.00  42.00
## - AREG     1     0.00  42.00
## - ARG2     1     0.00  42.00
## - ALOX15   1     0.00  42.00
## - ABCA1    1     0.00  42.00
## - AIM2     1     0.00  42.00
## - ATF3     1     0.00  42.00
## - ATXN3    1     0.00  42.00
## <none>           0.00  44.00
## - AGER     1    39.86  81.86
## - AGR3     1    47.07  89.07
## - ARHGDIB  1   432.52 474.52
## 
## Step:  AIC=42
## Class ~ ABCA1 + AGER + AGR2 + AGR3 + AGT + AIM2 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + APOL2 + APOLD1 + AREG + ARG2 + 
##     ARHGDIB + ARRB2 + ASB15 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ASB15    1    0.000 40.000
## - ANKRD1   1    0.000 40.000
## - AGT      1    0.000 40.000
## - ALOX5    1    0.000 40.000
## - ALDH3A2  1    0.000 40.000
## - AGR2     1    0.000 40.000
## - APOLD1   1    0.000 40.000
## - ARRB2    1    0.000 40.000
## - ANKRD22  1    0.000 40.000
## - APOL2    1    0.000 40.000
## - AREG     1    0.000 40.000
## - ARG2     1    0.000 40.000
## - ALOX15   1    0.000 40.000
## - ABCA1    1    0.000 40.000
## - AIM2     1    0.000 40.000
## - ATXN3    1    0.000 40.000
## - ARHGDIB  1    0.000 40.000
## - ATF3     1    0.000 40.000
## <none>          0.000 42.000
## - AGER     1   40.104 80.104
## - AGR3     1   47.104 87.104
## 
## Step:  AIC=40
## Class ~ ABCA1 + AGER + AGR2 + AGR3 + AGT + AIM2 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD1 + ANKRD22 + APOL2 + APOLD1 + AREG + ARG2 + 
##     ARHGDIB + ARRB2 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ANKRD1   1     0.00  38.00
## - ALDH3A2  1     0.00  38.00
## - AGT      1     0.00  38.00
## - AGR2     1     0.00  38.00
## - ARRB2    1     0.00  38.00
## - ALOX5    1     0.00  38.00
## - ANKRD22  1     0.00  38.00
## - AREG     1     0.00  38.00
## - APOL2    1     0.00  38.00
## - APOLD1   1     0.00  38.00
## - ALOX15   1     0.00  38.00
## - ARG2     1     0.00  38.00
## - ATXN3    1     0.00  38.00
## - ATF3     1     0.00  38.00
## <none>           0.00  40.00
## - AIM2     1    19.26  57.26
## - AGER     1    40.91  78.91
## - AGR3     1    47.11  85.11
## - ABCA1    1   360.44 398.44
## - ARHGDIB  1   432.52 470.52
## 
## Step:  AIC=38
## Class ~ ABCA1 + AGER + AGR2 + AGR3 + AGT + AIM2 + ALDH3A2 + ALOX15 + 
##     ALOX5 + ANKRD22 + APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + 
##     ARRB2 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ALDH3A2  1    0.000 36.000
## - AGR2     1    0.000 36.000
## - ARRB2    1    0.000 36.000
## - ANKRD22  1    0.000 36.000
## - APOL2    1    0.000 36.000
## - AGT      1    0.000 36.000
## - ALOX5    1    0.000 36.000
## - APOLD1   1    0.000 36.000
## - AREG     1    0.000 36.000
## - ARG2     1    0.000 36.000
## - ALOX15   1    0.000 36.000
## - ABCA1    1    0.000 36.000
## <none>          0.000 38.000
## - ARHGDIB  1   19.901 55.901
## - AIM2     1   22.935 58.935
## - ATXN3    1   33.581 69.581
## - ATF3     1   36.557 72.557
## - AGER     1   43.369 79.369
## - AGR3     1   47.723 83.723
## 
## Step:  AIC=36
## Class ~ ABCA1 + AGER + AGR2 + AGR3 + AGT + AIM2 + ALOX15 + ALOX5 + 
##     ANKRD22 + APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + ARRB2 + 
##     ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - AGR2     1    0.000 34.000
## - ARRB2    1    0.000 34.000
## - ANKRD22  1    0.000 34.000
## - ALOX5    1    0.000 34.000
## - AREG     1    0.000 34.000
## - APOLD1   1    0.000 34.000
## - ALOX15   1    0.000 34.000
## <none>          0.000 36.000
## - ABCA1    1   16.679 50.679
## - AGT      1   18.119 52.119
## - ARHGDIB  1   20.508 54.508
## - ARG2     1   21.344 55.344
## - APOL2    1   21.729 55.729
## - AIM2     1   23.279 57.279
## - ATXN3    1   36.572 70.572
## - ATF3     1   36.580 70.580
## - AGER     1   43.988 77.988
## - AGR3     1   47.775 81.775
## 
## Step:  AIC=34
## Class ~ ABCA1 + AGER + AGR3 + AGT + AIM2 + ALOX15 + ALOX5 + ANKRD22 + 
##     APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + ARRB2 + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ARRB2    1    0.000 32.000
## - ANKRD22  1    0.000 32.000
## - ALOX5    1    0.000 32.000
## - AREG     1    0.000 32.000
## <none>          0.000 34.000
## - APOLD1   1   18.347 50.347
## - ABCA1    1   19.084 51.084
## - ARHGDIB  1   20.790 52.790
## - AGT      1   21.359 53.359
## - APOL2    1   21.859 53.859
## - ALOX15   1   23.436 55.436
## - AIM2     1   24.043 56.043
## - ARG2     1   25.126 57.126
## - ATF3     1   37.331 69.331
## - ATXN3    1   38.463 70.463
## - AGER     1   44.250 76.250
## - AGR3     1   49.338 81.338
## 
## Step:  AIC=32
## Class ~ ABCA1 + AGER + AGR3 + AGT + AIM2 + ALOX15 + ALOX5 + ANKRD22 + 
##     APOL2 + APOLD1 + AREG + ARG2 + ARHGDIB + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - ANKRD22  1    0.000 30.000
## - AREG     1    0.000 30.000
## - ALOX5    1    0.000 30.000
## <none>          0.000 32.000
## - APOLD1   1   22.354 52.354
## - ARHGDIB  1   22.570 52.570
## - AGT      1   23.074 53.074
## - AIM2     1   24.201 54.201
## - ABCA1    1   24.996 54.996
## - ALOX15   1   25.500 55.500
## - APOL2    1   25.927 55.927
## - ARG2     1   27.308 57.308
## - ATF3     1   38.082 68.082
## - ATXN3    1   41.537 71.537
## - AGER     1   44.332 74.332
## - AGR3     1   50.240 80.240
## 
## Step:  AIC=30
## Class ~ ABCA1 + AGER + AGR3 + AGT + AIM2 + ALOX15 + ALOX5 + APOL2 + 
##     APOLD1 + AREG + ARG2 + ARHGDIB + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## - AREG     1    0.000 28.000
## <none>          0.000 30.000
## - ABCA1    1   25.431 53.431
## - AIM2     1   26.435 54.435
## - ALOX5    1   27.920 55.920
## - ARHGDIB  1   28.813 56.813
## - ARG2     1   29.175 57.175
## - APOLD1   1   29.393 57.393
## - ALOX15   1   31.504 59.504
## - APOL2    1   31.677 59.677
## - AGT      1   33.467 61.467
## - ATF3     1   38.508 66.508
## - ATXN3    1   42.394 70.394
## - AGER     1   44.502 72.502
## - AGR3     1   51.516 79.516
## 
## Step:  AIC=28
## Class ~ ABCA1 + AGER + AGR3 + AGT + AIM2 + ALOX15 + ALOX5 + APOL2 + 
##     APOLD1 + ARG2 + ARHGDIB + ATF3 + ATXN3
## 
##           Df Deviance    AIC
## <none>          0.000 28.000
## - ABCA1    1   27.091 53.091
## - ALOX5    1   28.276 54.276
## - ARG2     1   29.389 55.389
## - APOLD1   1   30.348 56.348
## - ARHGDIB  1   31.245 57.245
## - AIM2     1   31.687 57.687
## - ALOX15   1   31.738 57.738
## - APOL2    1   32.506 58.506
## - AGT      1   34.307 60.307
## - ATF3     1   38.614 64.614
## - ATXN3    1   42.394 68.394
## - AGER     1   48.267 74.267
## - AGR3     1   51.668 77.668
## Class ~ ABCA1 + AGER + AGR3 + AGT + AIM2 + ALOX15 + ALOX5 + APOL2 + 
##     APOLD1 + ARG2 + ARHGDIB + ATF3 + ATXN3

8 Feature Importance with Boruta

8.1 Nanostring

8.2 Affymetrix