1. Department of Colorectal Surgery, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
2. Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou 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 China