Affiliation: | 1. Department of Breast and Thyroid Surgery, The Sixth Affiliated Hospital, Sun Yat‐Sen University, Guangzhou, People's Republic of China;2. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat‐Sen University, Guangzhou, People's Republic of China;3. Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China |