1. Department of Colorectal Surgery, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou Guangdong China
2. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou Guangdong China
3. Department of Coloproctology, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
4. Department of Endoscopic Center National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Shenzhen China
5. Department of Endoscopic Surgery, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou Guangdong China