1. Division of HBP Surgery and Liver Transplantation, Department of Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul
2. Division of Transplantation and Vascular Surgery, Department of Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul
3. Division of Hepatobiliary Pancreatic Surgery, Department of Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul
4. Division of Hepatobiliopancreas and Transplant Surgery, Korea University Ansan Hospital, Ansan, Korea