1. Department of Medicine; National Yang-Ming University, School of Medicine; Taipei Taiwan
2. Division of Gastroenterology; Department of Medicine; Taipei Veterans General Hospital; Taipei Taiwan
3. Division of Cardiology; Department of Medicine; Taipei Veterans General Hospital; Taipei Taiwan
4. Healthcare and Management Center; Taipei Veterans General Hospital; Taipei Taiwan
5. Department of Medical Research and Education; Taipei Veterans General Hospital; Taipei Taiwan