1. Department of Medicine; Faculty of Medicine; Chulalongkorn University
2. Department of Surgery; Rajavithi Hospital
3. Department of Gastroenterology and Hepatology; National University Health System
4. Prince Court Medical Centre
5. Digestive Disease Center; Department of Internal Medicine; Soon Chun Hyang University School of Medicine; Bucheon/Seoul
6. Department of Gastroenterology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
7. Advanced Diagnostic Imaging and Image-Guided Minimal Invasive Therapy Center Department of Radiology; Faculty of Medicine; Ramathibodi Hospital
8. Department of Medicine; Faculty of Medicine; KhonKaen University; KhonKaen
9. Department of Medicine; Faculty of Medicine; Chiangmai University; Chiangmai
10. Department of Surgery; Siriraj Hospital, Mahidol University
11. Asian Institute of Gastroenterology; Hyderabad
12. Institute of Advanced Endoscopy; Mumbai India
13. Department of Gastroenterology and Hepatology; Tokyo Medical University; Tokyo Japan
14. Department of Medicine; Siriraj Hospital, Mahidol University; Bangkok
15. Department of Radiology; Tan Tock Seng Hospital; Singapore
16. NKC institute of Gastroenterology and Hepatology; Faculty of Medicine; Prince of Songkla University; Songkhla Thailand
17. Department of Gastroenterology; Royal Brisbane and Women's Hospital; Brisbane Queensland Australia
18. Department of Gastroenterology and Hepatology; University of Malaya; Kuala Lumpur Malaysia