1. Department of Hematology-Oncology, GangNeung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.
2. Department of Surgery, GangNeung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.
3. Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.