Affiliation: | Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China;Department of General Surgery, West China-Shangjin Hospital/Chengdu Shangjin Nanfu Hospital, Sichuan University, Chengdu, China;Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China;Department of Thyroid and Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, China |