1. Institute of Brain Science National Yang Ming Chiao Tung University School of Medicine Taipei Taiwan
2. Department of Psychiatry Taipei Veterans General Hospital Taipei Taiwan
3. Faculty of Medicine National Yang Ming Chiao Tung University School of Medicine Taipei Taiwan
4. Endoscopy Center for Diagnosis and Treatment Taipei Veterans General Hospital Taipei Taiwan
5. Division of Gastroenteorlogy Department of Medicine Taipei Veterans General Hospital Taipei Taiwan