1. Department of Gastroenterology, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai China
2. Department of Gastroenterology Fourth Military Medical University Xi'an China
3. Department of Gastroenterology Toho University Sakura Medical Center Chiba Japan
4. Department of Internal Medicine Korea University College of Medicine Seoul Korea
5. Department of Internal Medicine, National Taiwan University Hospital National Taiwan University College of Medicine Taipei Taiwan
6. Department of Gastroenterology and Human Nutrition All India Institute of Medical Sciences New Delhi India
7. Department of Gastroenterology The First Affiliated Hospital, Sun Yat‐sen University Guangzhou China
8. Department of Gastroenterology The Sixth Affiliated Hospital, Sun Yat‐sen University Guangzhou China
9. Department of Gastroenterology Shiga University Otsu Japan
10. Department of Internal Medicine Kyung Hee University School of Medicine Seoul Korea
11. Department of Gastroenterology, Asan Medical Center University of Ulsan College of Medicine Seoul Korea
12. Department of Gastroenterology and Hepatology Tokyo Medical and Dental University Tokyo Japan
13. Department of Medicine and Therapeutics, Institute of Digestive Disease, LKS Institute of Health Science, State Key Laboratory of Digestive Disease The Chinese University of Hong Kong Hong Kong
14. Center for Advanced IBD Research and Treatment Kitasato University Tokyo Japan
15. Department of Medicine University of Malaya Kuala Lumpur Malaysia
16. Department of Internal Medicine Toho University Sakura Japan
17. Department of Internal Medicine Hanyang University Guri Hospital Guri Korea
18. Division of Gastroenterology and Hepatology, Department of Medicine University of Hong Kong Hong Kong
19. Department of Medicine University of Santo Tomas Manila Philippines
20. Gleneagles Medical Centre and Duke‐NUS Medical School Singapore
21. Department of Gastroenterology Peking Union Medical College Beijing China