1. Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology The Sixth Affiliated Hospital, Sun Yat‐sen University Guangzhou PR China
2. Department of Colorectal Surgery The Sixth Affiliated Hospital, Sun Yat‐sen University Guangzhou PR China
3. Department of Organoid Medicine Keio University School of Medicine Tokyo Japan
4. Department of Gastroenterology Keio University School of Medicine Tokyo Japan