1. Division of Hematology/Oncology, Department of Internal Medicine, Tri-service General Hospital, National Defense Medical Center, Taipei City 114, Taiwan
2. Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City 114, Taiwan
3. Division of Thoracic Surgery, Department of Surgery, MacKay Memorial Hospital, Taipei 104, Taiwan
4. Department of Medicine, MacKay Medical College, New Taipei City 252, Taiwan
5. Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 110, Taiwan
6. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Shuang Ho Hospital, New Taipei City 235, Taiwan
7. Continuing Education Program of Food Biotechnology Applications, College of Science and Engineering, National Taitung University, Taitung 95092, Taiwan
8. Division of Colorectal Surgery, Department of Surgery, Mackay Memorial Hospital, Taipei City 110, Taiwan
9. Department of Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan
10. TM U Research Center for Digestive Medicine, Taipei Medical University, Taipei 110, Taiwan