1. Division of Gastroenterology, Department of Internal Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chia-Yi, Taiwan
2. School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Taiwan, Hualien, Taiwan
3. Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
4. Department of Internal Medicine, National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
5. Department of Medical Research, National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
6. Hepatitis Research Center, National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei, Taiwan