The PC mutation rates were 20% and 9% (Fig. 1F, P = 0.2014), and the BCP mutation rates were 19% and 24% (Fig. 1G, P = 0.5059) for int(+) HBV-HCC and int(+) HBCV-HCC, respectively. The gene discussed is PC; the disease is hepatocellular carcinoma.