Other genes, such as C5, CD4, CETP, COL18A1, DAND5, DNASE1, EBPL, F7, FLT3, ITGB2, KNG1, LMOD1, PPAT, PPIA, PRF1, SELP, SPPL2A, and TRPV1 that have not been systematically reported in relation to the prognosis of liver cancer, are our newly discovered prognostic markers for DFS in liver cancer. Here, COL18A1 is linked to liver cancer.