1. Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
2. Hepato-Pancreato-Biliary Center, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
3. Department of Liver Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
4. Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan, China
5. Department of Hepatobiliary Surgery, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China