Mitsuo Kusano Director, Seiwa Memorial Hospital, Sapporo, JapanNorihiro Kokudo Professor and Chairman, Hepato-Biliary-Pancreatic Surgery Division, Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan Masakazu Toi Professor, Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, JapanMasaki Kaibori Associate Professor, Department of Surgery, Hirakata Hospital, Kansai Medical University, Hirakata, Japan