1. Division of Gastroenterology; Taipei Veterans General Hospital; Taipei Taiwan
2. Department of Medicine; National Yang-Ming University School of Medicine; Taipei Taiwan
3. Division of General Medicine; Department of Medicine; Taipei Veterans General Hospital; Taipei Taiwan
4. Institute of Clinical Medicine; National Yang-Ming University School of Medicine; Taipei Taiwan
5. Division of Thoracic Surgery; Department of Surgery; Taipei Veterans General Hospital; Taipei Taiwan
6. Institute of Microbiology and Immunology; National Yang-Ming University School of Medicine; Taipei Taiwan
7. Genomics Research Center; Academia Sinica; Taipei Taiwan
8. Graduate Institute of Traditional Chinese Medicine; Chang Gung University; Taipei Taiwan