1 School of Medicine, China Medical University, Taichung, Taiwan
2 Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
3 Department of Internal Medicine, Division of Hepato-Gastroenterology, China Medical University Hospital, Taichung, Taiwan
4 Graduate Institute of Clinical Medical Science, Chang Gung University, Tao-Yuan, Taiwan
5 Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
6 School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
7 Department of General Surgery, Changhua Christian Hospital, Changhua, Taiwan
8 Department of Medical Laboratory Science and Biotechnology, China Medical University, No. 91, Hsueh-Shih Rd., Taichung 404, Taiwan