1. Department of Medicine and Therapeutics The Chinese University of Hong Kong Hong Kong China
2. State Key Laboratory of Digestive Disease The Chinese University of Hong Kong Hong Kong China
3. Department of Gastroenterology & Hepatology Singapore General Hospital Singapore
4. Gastroenterology and Hepatology Unit Department of Medicine Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
5. Department of Gastroenterology Xinhua HospitalShanghai Jiao Tong University School of Medicine Shanghai China
6. Department of Medicine The University of Hong Kong Hong Kong China
7. Institute of Clinical Medicine School of Medicine National Yang‐Ming University Taipei Taiwan
8. Division of Gastroenterology and Hepatology Taipei Veterans General Hospital Taipei Taiwan
9. Faculty of Medicine National Yang‐Ming University School of Medicine Taipei Taiwan
10. Department of Internal Medicine Yonsei University College of Medicine Seoul Korea