1. Department of Surgery, Teikyo University School of Medicine
2. Department of Intensive Care Unit, Japan Community Health Care Organization Chukyo Hospital
3. Department of Hepato-Biliary-Pancreatic and Gastrointestinal Surgery, School of Medicine, International University of Health & Welfare
4. Department of Hepato-Biliary-Pancreatic and Traspantation Surgery, Mie University Graduate School of Medicine