1. Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei City, Taiwan
2. Division of Colorectal Surgery, Department of Surgery, Biomedical Park Hospital, National Taiwan University Hospital, Taipei City, Taiwan
3. Department of Surgery, National Taiwan University Hospital, Taipei City, Taiwan
4. Hepatitis Research Center, National Taiwan University Hospital, Taipei City, Taiwan
5. Taiwan Leader Biotech Corp, Taipei City, Taiwan