1. Department of General Surgery, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
2. Department of Gastroenteric Hernia Ganzhou People's Hospital Ganzhou Jiangxi China
3. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou Guangdong China
4. Department of General Surgery Ruijin People's Hospital Ganzhou Jiangxi China