1. a Department of Vascular Surgery, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
2. b Department of Gastrointestinal Surgery, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
3. c Department of Pathology, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
4. d Department of Vascular Surgery, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
5. e Department of Hepatobiliary Surgery, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
6. f Department of Emergency, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
7. g Department of Hepatobiliary Surgery, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China
8. h Department of Hepatobiliary Surgery, Zhongshan Hospital, Xiamen University, Xiamen, P. R. China