1. Department of Hepatic Surgery IV, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
2. Department of Hepatobiliary Surgery, The Lanzhou General Hospital of People's Liberation Army, Gansu, China
3. Department of Minimally Invasive Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
4. Department of Clinical Database, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
5. Department of Hepatic Surgery II, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
6. Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China