1. Hepatobiliary Pancreatic & Transplant Surgery; Mie University Graduate School of Medicine; 2-174 Edobashi Tsu Mie 514-8507 Japan
2. Department of Surgery; Teikyo University School of Medicine; Tokyo Japan
3. Department of Emergency Medicine, School of Medicine; University of Occupational and Environmental Health; Kitakyushu Japan
4. Department of Hemodialysis and Surgery, Chemotherapy Research Institute; International University of Health and Welfare; Ichikawa Japan
5. General Internal Medicine; Japanese Red Cross Nagoya Daini Hospital; Nagoya Japan
6. Department of Gastroenterology and Hepatology; Tokyo Medical University; Tokyo Japan
7. Department of Radiology, School of Medical Science; Kanazawa University; Kanazawa Japan