1. Department of Medicine University of Malaya Kuala Lumpur Malaysia
2. Department of Medicine, School of Medical Sciences Universiti Sains Malaysia Kota Bharu Malaysia
3. Division of Gastroenterology, Faculty of Medicine, Siriraj Hospital Mahidol University Bangkok Thailand
4. Division of Gastroenterology, Department of Internal Medicine Faculty of Medicine Universitas Indonesia/Cipto Mangunkusumo National General Hospital Jakarta Indonesia
5. Department of Internal Medicine University of Medicine and Pharmacy Ho Chi Minh City Vietnam
6. Gastroenterology Unit, Department of Medicine and Gut Research Group, Faculty of Medicine Universiti Kebangsaan Malaysia Bangi Malaysia
7. Department of Gastroenterology University of Santo Tomas Manila Philippines
8. Department of Gastroenterology, Hue University of Medicine and Pharmacy Hue University Hue City Vietnam
9. Department of Medicine, Faculty of Medicine National University of Singapore Singapore