1. Division of Hepatobiliary Medicine, Department of Internal Medicine Kaohsiung Medical University Hospital Kaohsiung Taiwan
2. Department of Internal Medicine, Faculty of Medicine, College of Medicine Kaohsiung Medical University Kaohsiung Taiwan
3. Center for Cancer Research Kaohsiung Medical University Kaohsiung Taiwan
4. Department of Internal Medicine Kaohsiung Municipal Ta‐Tung Hospital Kaohsiung Taiwan