1. Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, and Gleneagles Hospital, Singapore
2. Center of Excellence on Neurogastroenterology and Motility, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
3. Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
4. Gastro Centre, Ipoh, Malaysia
5. 5 Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Mukogawa-cho, Nishinomiya, Hyogo, Japan
6. Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, New Territories, Hong Kong
7. Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
8. Department of Gastroenterology, College of Medicine, Hanyang University, Seoul, Korea
9. Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
10. Division of Gastroenterology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
11. Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
12. Division of Gastroenterology, Departement of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia
13. Division of Gastroenterology, P D Hinduja Hospital, Mumbai, India
14. Department of Internal Medicine, Division of Gastroenterology, University of Santo Tomas, Manila, Philippine
15. Taichung Veterans General Hospital, Taiwan Boulevard, Taichung City, Taiwan
16. Department of Gastroenterology and Hepatology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
17. Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical Colleg e, Beijing, China
18. Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Aoba Sendai, Japan
19. Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea
20. Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
21. Department of Medicine, Kurokawa General Hospital, Kurokawa, Miyagi, Japan