1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
2. Gastroenterology and Hepatology, Taipei Medical University School of Medicine, Taipei, Taiwan
3. TMU Research Center for Digestive Medicine, Taipei Medical University, Taipei, Taiwan
4. Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Shuang Ho Hospital Ministry of Health and Welfare, New Taipei City, Taiwan
5. Surgery, Taipei Medical University School of Medicine, Taipei, Taiwan