1. Department of Gastroenterology and Hepatology; The First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
2. Division of Gastroenterology and Hepatology; University Medicine Cluster, National University Hospital; Singapore
3. Asian Institute of Gastroenterology; Hyderabad India
4. Department of Gastroenterology; Sanjay Gandhi Postgraduate Institute of Medical Sciences; Lucknow India
5. Division of Gastroenterology, Cipto Mangunkusumo General Hospital, Department of Internal Medicine; University of Indonesia; Jakarta Indonesia
6. Department of Internal Medicine; Korea University College of Medicine; Seoul Korea
7. Department of Internal Medicine, Kangnam St. Mary's Hospital; The Catholic University of Korea; Seoul Korea
8. Division of Gastroenterology; Taipei Veterans General Hospital, National Yang-Ming University Taipei; Taipei Taiwan
9. GI Motility Research Unit, Division of Gastroenterology, Department of Internal Medicine; Chulalongkorn University; Bangkok Thailand
10. Gastro Centre Ipoh; Ipoh Perak Malaysia
11. Klinic Chong; Slim River Perak Malaysia
12. Section of Gastroenterology, Department of Internal Medicine; Medical Center Manila; Manila Philippines
13. Department of Gastroenterology and Hepatology, Union Hospital of Tongji Medical College; Huazhong University of Science and Techonology; Wuhan Hubei China
14. Center for Functional GI and Motility Disorders; University of North Carolina at Chapel Hill; Chapel Hill North Carolina USA
15. Department of Medicine, Yong Loo Lin School of Medicine; National University of Singapore; Singapore