The band densities of C1QB (p < 0.0001), C1QC (p < 0.0001), C4BPA (p < 0.0001), and C4BPB (p < 0.001) in the HCC group were significantly higher than those in the control group (Fig. 8G–J). The gene discussed is C4BPB; the disease is hepatocellular carcinoma.