The analysis of the heatmap showed that TRIM36, CYP26B1, PAGE1, CDK5R2, and DCAF8L1 had elevated expression levels in the high-risk score group among the HCC tissues of the TCGA training cohort (Fig. 7G), confirming their significant prognostic value in the TCGA training cohort. This evidence concerns the gene PAGE1 and hepatocellular carcinoma.