Age, sex, aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatinine, hemoglobin, platelet, prothrombin, compensated or decompensated cirrhosis, treatment experienced and history of HCC are comparable for the SOF/RBV, SOF/RBV/DCV and SOF/DCV groups. The gene discussed is F2; the disease is Cirrhosis.