1. Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong Hong Kong China
2. Institute of Digestive Disease Chinese University of Hong Kong Hong Kong China
3. Department of Medicine University of Malaya Medical Centre and Specialist Centre Kuala Lumpur Malaysia
4. Department of Gastroenterology and Hepatology Changi General Hospital, SingHealth Hong Kong China
5. Department of Gastroenterology, Nanfang Hospital Southern Medical University Guangzhou China
6. Department of Surgery, Faculty of Medicine Chinese University of Hong Kong Hong Kong China
7. Duke‐NUS Medical School, Yong Loo Lin School of Medicine National University of Singapore Singapore
8. Lee Kong Chian School of Medicine Nanyang Technological University Singapore