When the HCV-infected patients were compared among each other, the mean values and percentages of CF-positive samples were higher for patients with cirrhosis and hepatocellular carcinoma compared to patients without these complications (11.1% ± 2.7%, 11.1% ± 4.0% and 0.8% ± 4.4%, respectively) [16]. The gene discussed is CFTR; the disease is hepatocellular carcinoma.