1. Department of General 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 Biomedical Innovation Center The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
3. Institute of Biomedical Innovation and Laboratory of Regenerative Medicine and Biomaterials Biomedical Material Conversion and Evaluation Engineering Technology Research Center of Guangdong Province Guangzhou China
4. Department of Endoscopic Surgery The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
5. Department of Infectious Diseases The Third Affiliated Hospital Sun Yat‐sen University Guangzhou China
6. Zhongshan School of Medicine Sun Yat‐sen University Guangzhou China