1. Department of Medicine, Yong Loo Lin School of Medicine, The National University of Singapore, Singapore
2. Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore
3. Department of Gastroenterology, Sheikh Russel National Gastroliver Institute and Hospital, Dhaka, Bangladesh
4. Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
5. Duke-NUS Medical School, Singapore
6. School of Medical Sciences, Universiti Sains Malaysia, Malaysia
7. St George and Sutherland Clinical School, University of New South Wales, Kogarah, NSW, Australia
8. Department of Gastroenterology and Hepatology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
9. Department of Gastroenterology, GB Pant Hospital, New Delhi, India
10. Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
11. Endoscopy center for Diagnosis of Treatment, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
12. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
13. Center of Excellence in Neurogastroenterology and Motility, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
14. Division of Gastroenterology, Department of Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
15. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
16. Dayanand Medical College & Hospital, Ludhiana, Punjab, India
17. Saw Swee Hock School of Public Health, NUS, Singapore
18. Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
19. Division of Gastroenterology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
20. Department of Medicine, University of Malaysia, Kuala Lumpur, Malaysia
21. Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea
22. Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
23. Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute Medical Science, Lucknow, India