We searched the Kaplan-Meier OS curves and progression-free survival (PFS) curves of the four genes in the risk model in the GEPIA database and manifested that these four-gene levels had a dramatic impact on OS of patients (Figure 6(a)), among which the HCC patients with high expressions of CLEC1B, CYP2C9, and LCAT presented poor prognosis. This evidence concerns the gene LCAT and hepatocellular carcinoma.