1. Division of Gastroenterology; Taipei Veterans General Hospital; Taipei Taiwan
2. Yuanshan Branch; Taipei Veterans General Hospital; I-Lan Taiwan
3. Department of Medicine; National Yang-Ming University; Taipei Taiwan
4. Endoscopy Center for Diagnosis and Treatment; Taipei Veterans General Hospital; Taipei Taiwan
5. Institute of Brain Science; National Yang-Ming University; Taipei Taiwan
6. Institute of Hospital and Health Care Administration; National Yang-Ming University; Taipei Taiwan
7. Department of Psychiatry; Taipei Veterans General Hospital; Taipei Taiwan