1. Department of Anorectal Surgery, Xingtai People’s Hospital, Xingtai, China
2. Department of Colorectal Medicine, Shijiazhuang Hospital of Traditional Chinese Medicine, Shijiazhuang, China
3. Department of Gastrointestinal Oncology, Xingtai People’s Hospital, Xingtai, China
4. Pelvic Floor Center, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China