1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan
2. School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
3. Department of Post-Baccalaureate Medicine, College of Medicine, Chung Hsing University, Taichung 40227, Taiwan
4. School of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
5. Ph.D. Program in Translational Medicine, Chung Hsing University, Taichung 40227, Taiwan
6. Institute of Biomedical Sciences, Chung Hsing University, Taichung 40227, Taiwan