1. Division of Gastroenterology and Hepatology, Department of Internal Medicine National Taiwan University Hospital Taipei Taiwan
2. Department of Internal Medicine National Taiwan University College of Medicine Taipei Taiwan
3. Integrated Diagnostics and Therapeutics National Taiwan University Hospital, National Taiwan University College of Medicine Taipei Taiwan
4. Division of Gastroenterology, Department of Internal Medicine Taitung Mackay Memorial Hospital Taitung Taiwan
5. Mackay Medical College New Taipei City Taiwan
6. Division of Gastroenterology and Hepatology, Department of Internal Medicine Chia‐Yi Christian Hospital Chia‐Yi Taiwan
7. Division of Gastroenterology and Hepatology, Department of Internal Medicine National Taiwan University Hospital Yun‐Lin Taiwan
8. Division of Hepatogastroenterology, Department of Internal Medicine China Medical University Hospital Taichung Taiwan
9. Department of Geriatrics and Gerontology National Taiwan University Hospital Taipei Taiwan
10. Division of Gastroenterology and Hepatology, Department of Internal Medicine National Taiwan University Hospital Hsin‐Chu Taiwan
11. Department of Internal Medicine E‐DA Hospital and I‐Shou University Kaohsiung Taiwan
12. Digestive Medicine Center China Medical University Hospital Taichung Taiwan
13. Department of Internal Medicine National Taiwan University Cancer Center Taipei Taiwan