Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China. Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, China. Shanghai Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China. Department of Hepatobiliary and Pancreatic Surgery, University Hospitals of Leicester NHS Trust, Leicester, UK. Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China. zhou.jian@zs-hospital.sh.cn. Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, Shanghai, China. zhou.jian@zs-hospital.sh.cn. Shanghai Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China. zhou.jian@zs-hospital.sh.cn. Institute of Biomedical Sciences, Fudan University, Shanghai, China. zhou.jian@zs-hospital.sh.cn. State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China. zhou.jian@zs-hospital.sh.cn.