1. Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
2. Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
3. Department of Primary Care Medicine, Taipei Medical University Hospital, Taipei, Taiwan
4. Department of General Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
5. School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
6. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
7. Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, Taiwan