1. Division of General Medicine, Department of Medicine Taipei Veterans General Hospital Taipei Taiwan
2. Division of Gastroenterology and Hepatology, Department of Medicine Taipei Veterans General Hospital Taipei Taiwan
3. Division of Holistic and Multidisciplinary Medicine, Department of Medicine Taipei Veterans General Hospital Taipei Taiwan
4. Department of Internal Medicine, School of Medicine, College of Medicine National Yang Ming Chiao Tung University Taipei Taiwan
5. Institute of Clinical Medicine, School of Medicine National Yang Ming Chiao Tung University Taipei Taiwan