1 Department of General Surgery, Cancer Center, Division of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
2 Department of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
3 Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China.
4 Eastern Hepatobiliary Clinical Research Institute (EHCRI), Third Affiliated Hospital of Navy Medical University, Shanghai, China.
5 Department of General Surgery, Cancer Center, Division of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China. yangtiandfgd@hotmail.com.
6 Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), Shanghai, China. yangtiandfgd@hotmail.com.
7 Eastern Hepatobiliary Clinical Research Institute (EHCRI), Third Affiliated Hospital of Navy Medical University, Shanghai, China. yangtiandfgd@hotmail.com.