1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
2. Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
3. Department of Internal Medicine, National Taiwan University Hospital, Jin-shan Branch, New Taipei City, Taiwan
4. Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
5. Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan