1. Division of Gastroenterology and Hepatology; Taichung Veterans General Hospital; Taichung Taiwan
2. Division of Gastroenterology and Hepatology; Stanford University School of Medicine; Palo Alto California USA
3. Tri-Service General Hospital; National Defense Medical Center; Taipei Taiwan
4. Center for Health Policy Research and Development; National Cancer Institute, National Health Research Institutes; Miaoli Taiwan
5. School of Medicine; Fu Jen Catholic University; New Taipei City Taiwan
6. Department of Internal Medicine; National Taiwan University Hospital; Taipei Taiwan
7. Division of Translational Research; Taipei Veterans General Hospital; Taipei Taiwan
8. Faculty of Medicine and Institute of Clinical Medicine; National Yang-Ming University; Taipei Taiwan
9. Department of Public Health and Graduate Institute of Clinical Medical Science; China Medical University; Taichung Taiwan. Department of Life Sciences and Rong Hsing Research Center for Translational Medicine; National Chung-Hsing University; Taichung Taiwan