1. Department of Medicine St. George's University School of Medicine St. George Grenada
2. Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine Taipei Medical University Taipei Taiwan
3. Division of Gastroenterology and Hepatology, Department of Internal Medicine Shuang Ho Hospital New Taipei City Taiwan
4. Department of Medical Research & Education Taipei Medical University – Shuang Ho Hospital New Taipei City Taiwan
5. International Ph.D. Program in Medicine, College of Medicine Taipei Medical University Taipei Taiwan
6. Department of Medical Laboratory Science and Biotechnology Yuanpei University of Medical Technology Hsinchu Taiwan