1. Division of Hepato-biliary and Pancreatic Surgery; Department of Surgery; Kobe University; Kobe Japan
2. Division of Gastroenterology; Department of Internal Medicine; Kobe University; Kobe Japan
3. Division of Anesthesiology; Department of Surgery Related; Kobe University; Kobe Japan
4. Department of Hematology; Kobe University; Kobe Japan
5. Division of Medical Oncology/Hematology; Department of Medicine; Kobe University; Kobe Japan
6. Department of Diagnostic Pathology; Kobe University; Kobe Japan