1. Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
2. Department of Transplantation Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
3. Department of Surgery, Ajou University School of Medicine, Suwon, South Korea
4. Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
5. Department of Surgery, College of Medicine, Seoul National University, Seoul, South Korea
6. Center for Liver Cancer, Research Institute and Hospital, National Cancer Center, Goyang, South Korea