Although the RSF with log-rank-score obtains a top 20 genes/ covariates strongly relevant to CRC, these genes/ covariates are molecular subtypes, POLR3B, CLCN2, IER5, SLC9A8, MAP7D2, CABLES2, SYTL1, stages, KRAS, SLC6A4, LDLRAD3, CTSA, SCAND1, PIPOX, ARSJ, PHACTR3, SLC28A3, SGMS2, and CTSV. The gene discussed is SLC9A8; the disease is colorectal carcinoma.