1. Department of Internal Medicine; Kangbuk Samsung Hospital Sungkyunkwan University; Seoul Korea
2. The Third Department of Internal Medicine; Kyorin University School of Medicine; Tokyo Japan
3. Department of Gastroenterology, The First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
4. 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
5. Gleneagles Medical Centre and Duke-NUS Medical School; Singapore
6. Department of Internal Medicine; National Taiwan University Hospital and College of Medicine; Taipei Taiwan
7. Department of Medical Gastroenterology; Asian Institute of Gastroenterology; Hyderabad India
8. Department of Medicine; University of Malaya; Kuala Lumpur Malaysia
9. Department of Internal Medicine; Korea University; Seoul Korea
10. Department of Internal Medicine; Hanyang University Guri Hospital; Seoul Gyunggi Korea
11. Department of Internal Medicine; Kyung Hee University; Seoul Korea
12. Department of Gastroenterology; Shanghai Jiao Tong University; Shanghai China
13. Department of Gastroenterology; Fourth Military Medical University; Xi'an China
14. Department of Gastroenterology; Peking Union Medical College; Beijing China
15. Department of Gastroenterology and Hepatology; Tokyo Medical and Dental University; Tokyo Japan
16. Department of Gastroenterology; Shiga University; Otsu Japan
17. Department of Internal Medicine; Toho University; Sakura Japan
18. Department of Medicine; Jichi Medical University; Tochigi Japan
19. Center for Advanced IBD Research and Treatment; Kitasato University; Tokyo Japan
20. Department of Gastroenterology; GB Pant Institute of Postgraduate Medical Education and Research; New Delhi India
21. Department of Gastroenterology; University of Ulsan College of Medicine, Asan Medical Center; Seoul Korea