1. Department of Gastroenterology and Hepatology; National University Hospital; Singapore
2. University of Santo Tomas Hospital; Manila Philippines
3. 108 Military Hospital; Hanoi Vietnam
4. Raffles Hospital; Singapore
5. Lahore General Hospital; Lahore Pakistan
6. Department of Surgery; Rajavithi Hospital; Bangkok Thailand
7. Department of Surgery; University of Colombo; Colombo Sri Lanka
8. Institute of Advanced Endoscopy; Mumbai India
9. Department of Gastroenterology; Shanghai Changhai Hospital; Shanghai China
10. Kitasato University East Hospital; Tokyo Japan
11. Department of Gastroenterology; Asan Medical Center; Seoul Republic of Korea
12. Department of Internal Medicine; National Taiwan University Hospital; Taipei Taiwan
13. Department of Surgery; The Chinese University of Hong Kong; Hong Kong China
14. Center for Interventional Endoscopy; Florida Hospital; Orlando USA
15. Department of Gastroenterology; Kyoto Second Red Cross Hospital; Kyoto Japan
16. Department of Medicine; National University Health System University Medicine Cluster; Singapore