1. Graduate Institute of Clinical Medicine; China Medical University; Taichung Taiwan
2. Division of Gastroenterology and Hepatology; E-Da Hospital/I-Shou University; Kaohsiung Taiwan
3. School of Medicine; Fu Jen Catholic University; Taipei Taiwan
4. Center for Health Policy Research and Development; National Health Research Institutes; Miaoli Taiwan
5. Division of Endocrinology and Metabolism; E-Da Hospital/I-Shou University; Kaohsiung Taiwan
6. Department of Epidemiology; Brown University; Providence RI USA
7. Graduate Institute of Biotechnology; National Changhua University of Education; Taichung Taiwan
8. Department of Internal Medicine; National Taiwan University Hospital; Taipei Taiwan
9. Division of Gastroenterology; Taichung Veterans General Hospital; Taichung Taiwan
10. School of Medicine; National Yang-Ming University; Taipei Taiwan
11. College of Public Health; China Medical University; Taichung Taiwan
12. Department of Life Sciences; National Chung-Hsing University; Taichung Taiwan