These six cell lines were classified into three subgroups according to YAP/TAZ expression level in HCC tissue in order to investigate drug response according to the degree of YAP/TAZ expression; High YAP/TAZ group (Patient No. #7, #8), Medium YAP/TAZ group (Patient No. #4, #5), and Low YAP/TAZ group (Patient No. #3, #6). This evidence concerns the gene YAP1 and hepatocellular carcinoma.