1. Division of Gastroenterology, Department of Internal Medicine MacKay Memorial Hospital Taipei Taiwan
2. MacKay Junior College of Medicine, Nursing and Management Taipei Taiwan
3. MacKay Medical College New Taipei City Taiwan
4. Taiwan Society of Inflammatory Bowel Disease Taipei Taiwan
5. Department of Internal Medicine National Taiwan University Hospital Taipei Taiwan
6. College of Medicine National Taiwan University Taipei Taiwan
7. Division of Gastroenterology and Hepatology, Department of Internal Medicine China Medical University Hospital Taichung Taiwan
8. Department of Gastroenterology Tri‐Service General Hospital Taipei Taiwan
9. Department of Gastroenterology and Hepatology Linkou Chang Gung Memorial Hospital Taoyuan Taiwan
10. College of Medicine Chang Gung University Taoyuan Taiwan
11. Department of Gastroenterology Kaohsiung Medical University Kaohsiung Taiwan
12. Division of Gastroenterology and Hepatology, Department of Internal Medicine Far Eastern Memorial Hospital New Taipei City Taiwan
13. College of Medicine Fu Jen Catholic University New Taipei City Taiwan
14. Division of Colon and Rectal Surgery, Department of Surgery Mackay Memorial Hospital Taipei Taiwan