1. Department of Internal Medicine; Far Eastern Memorial Hospital; New Taipei City Taiwan
2. College of Medicine; Fu Jen Catholic University; New Taipei City Taiwan
3. Taiwan Association for the Study of Small Intestinal Diseases (TASSID); Taipei Taiwan
4. Department of Internal Medicine; China Medical University Hospital; Taichung Taiwan
5. Health Management Center; Far Eastern Memorial Hospital; New Taipei City Taiwan
6. Department of Internal Medicine; National Taiwan University Hospital; Taipei Taiwan
7. Graduate Institute of Clinical Medicine, College of Medicine; National Taiwan University; Taipei Taiwan