| Affiliation: | 1. Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan;2. Hepatobiliary and Pancreatic Surgery Division, National Cancer Centre Hospital, Tokyo, Japan;3. Department of Gastroenterological Surgery II, Hokkaido University Graduate School of Medicine, Sapporo, Japan;4. Division of Gastroenterological Surgery, Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan;5. Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan;6. Department of General Surgery, Chiba University Graduate School of Medicine, Chiba, Japan;7. Division of Hepato‐Biliary‐Pancreatic Surgery, Department of Surgery, Tokyo University Graduate School of Medicine, Tokyo, Japan;8. Division of Gastroenterological Surgery, Shinshu University School of Medicine, Matsumoto, Japan;9. Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan |
