1. Division of Gastroenterology and Hepatology, Department of Internal Medicine Ping Tung Christian Hospital Meiho University Ping‐Tung Taiwan
2. Division of Gastroenterology, Department of Internal Medicine Kaohsiung Medical University Hospital Kaohsiung Taiwan
3. Division of Hepato‐Gastroenterology, Department of Internal Medicine Kaohsiung Chang Gung Memorial Hospital Kaohsiung Taiwan
4. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Renai Branch Taipei City Hospital Taipei Taiwan
5. Division of Gastroenterology, Department of Internal Medicine, Hospital and College of Medicine National Taiwan University Taipei Taiwan
6. Division of Gastroenterology and Hepatology, Department of Internal Medicine Cathay General Hospital Taipei Taiwan
7. Department of Medicine Buddhist Tzu Chi General Hospital, Tzu Chi University Hualien Taiwan
8. Division of Gastroenterology and Hepatology, Department of Internal Medicine Taichung Veterans General Hospital Taichung Taiwan
9. Division of Gastroenterology, Department of Medicine, An Nan Hospital China Medical University Tainan Taiwan
10. Division of Gastroenterology, Department of Internal Medicine, Antai Medical Care Corporation Antai Tian‐Sheng Memorial Hospital Meiho University Ping‐Tung Taiwan
11. Division of Gastroenterology and Hepatology, Department of Internal Medicine Kaohsiung Veterans General Hospital, National Yang‐Ming University Kaohsiung Taiwan
12. Division of Gastroenterology, Department of Internal Medicine Shin Kong Wu Ho‐Su Memorial Hospital Taipei Taiwan