FLT1 and nonpapillary renal cell carcinoma: We found that 12 genes were statistically strongly correlated with the ccRCC patients' survival status with p < 0.05, namely CCND1, COL1A1, COL6A2, EFNA3, EIF4EBP1, FLT1, FN1, IL2RG, MTCP1, PDGFD, TGFA, and VWF.