1 Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China; Department of General Surgery, Dalian University Affiliated Xinhua Hospital, Dalian, 116021, China.
2 Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China; Institute of Digestive Surgery & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China.
3 Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
4 Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China; Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Digestive Surgery & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China. Electronic address: [email protected].