1. Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital; Kaohsiung Medical University; Kaohsiung Taiwan
2. Hepatobiliary Division, Department of Internal Medicine; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
3. Graduate Institute of Clinical Medicine; Kaohsiung Medical University; Kaohsiung Taiwan
4. Faculty of Internal Medicine, College of Medicine; Kaohsiung Medical University; Kaohsiung Taiwan
5. Department of Internal Medicine; Kaohsiung Municipal Ta-Tung Hospital; Kaohsiung Taiwan
6. Center for Teaching and Research, Kaohsiung Municipal Hsiao-Kang Hospital; Kaohsiung Medical University; Kaohsiung Taiwan
7. Department of Surgery; Changhua Christian Hospital; Changhua Taiwan
8. School of Medicine; Chung Shan Medical University; Taichung Taiwan
9. Division of HBP Surgery; Kaohsiung Medical University Hospital; Kaohsiung Taiwan