Affiliation: | 1. Department of Surgery, Shiga General Hospital, Moriyama 524-8524, Japan;2. Department of Digestive Surgery, Tenriyorodusoudanjyo Hospital, Tenri 632-8552, Japan;3. Department of Hepato-Biliary-Pancreatic and Surgery and Transplantation, Kyoto University Hospital, Kyoto 606-8507, Japan;4. First Department of Surgery, Mie University Hospital, Tsu 514-8507, Japan |