1. Department of General Surgery (Anorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China
2. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China
3. Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China
4. Department of Rectal Surgery, The First Hospital of Kashgar Prefecture, Kashgar 844000, China
5. Department of General Surgery (Endoscopic Surgery), The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China