1. General Surgery Department, Zhongshan Hospital Fudan University Shanghai China
2. Shanghai Engineering Research Center of Colorectal Cancer Minimally Invasive Shanghai China
3. Department of Surgery, Division of Colorectal Surgery The Chinese University of Hong Kong Hong Kong SAR China
4. Prince of Wales Hospital, Shatin Hong Kong SAR China
5. General Surgery Department, Zhongshan Hospital Fudan University Xiamen Branch Xiamen China