1. Department of Liver Surgery, West China Hospital, Sichuan University , Chengdu , China
2. Chinese Evidence-based Medicine Centre, West China Hospital, Sichuan University , Chengdu , China
3. Department of Medical Oncology, Cancer Centre, West China Hospital, Sichuan University , Chengdu , China
4. Department of Radiology, West China Hospital, Sichuan University , Chengdu , China
5. Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University , Chengdu , China