लेखक: Masakazu Toi

Mitsuo Kusano                                                     Director, Seiwa Memorial Hospital, Sapporo, Japan Norihiro 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, Japan Masaki Kaibori Associate Professor, Department of Surgery, Hirakata Hospital, Kansai Medical University, Hirakata, Japan