1. Division of Gastroenterology and Hepatology Shanghai Institute of Digestive Disease, State Key Laboratory of Systems Medicine for Cancer, NHC Key Laboratory of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai China
2. Department of Gastroenterology Nanfang Hospital, Southern Medical University Guangzhou Guangdong Province China
3. Department of Gastroenterology Qilu Hospital of Shandong University Jinan Shandong Province China
4. Department of Gastroenterology Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Gut Microecology and Associated Major Diseases Research; Center for Digestive Diseases Research and Clinical Translation of Shanghai Jiaotong University Shanghai China
5. Department of Gastroenterology and Hepatology Jiangsu Province Hospital Nanjing Jiangsu Province China
6. Department of Gastroenterology The Affiliated Hospital of Qingdao University Qingdao Shandong Province China
7. Division of Gastroenterology and Hepatology The Affiliated Drum Tower of Nanjing University Medical School Nanjing Jiangsu Province China
8. Department of Gastroenterology The Second Affiliated Hospital of Chongqing Medical University Chongqing China
9. Department of Gastroenterology and Hepatology Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan Hubei Province China
10. Department of Gastroenterology and Hepatology Peking Union Medical College Hospital Beijing China
11. Department of Gastroenterology Renmin Hospital of Wuhan University Wuhan Hubei Province China
12. Department of Gastroenterology and Hepatology Shengjing Hospital of China Medical University Shenyang Liaoning Province China
13. Department of Gastroenterology and Hepatology Tianjin Medical University General Hospital Tianjin China
14. Department of Gastroenterology Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan Hubei Province China
15. Department of Gastroenterology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang Province China
16. Department of Digestive Diseases Sichuan Provincial People's Hospital Chengdu Sichuan Province China
17. Department of Gastroenterology Tongji Hospital of Tongji University Shanghai China
18. Department of Gastroenterology Zhongshan Hospital, Fudan University Shanghai China
19. Department of Gastroenterology The First Affiliated Hospital of Zhengzhou University Zhengzhou Henan Province China
20. Department of Biostatistics Peking University Clinical Research Institute Beijing China