1. Organ Transplantation Unit, Kyoto University Hospital, Kyoto University
2. Department of Gastroenterology and Hepatology, Nagoya University
3. Department of Gastroenterology, Yamagata University Faculty of Medicine
4. The 2nd Department of Internal Medicine, Shinshu University School of Medicine
5. Department of Hepatobiliary Pancreatic Surgery and Transplantation, Kyoto University
6. Department of Surgery, Asahikawa Medical School