1. National Clinical Research Center for Digestive Disease and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi’an, Shaanxi, China
2. BioChain (Beijing) Science and Technology, Inc, Beijing, China
3. Department of Gastroenterology, The Army General Hospital, Beijing, China
4. Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China