Seoul National University - Department of Surgery, Seoul National University - Department of Surgery, Seoul National University - Gastric Cancer Center, Seoul National University - Division of Colorectal Surgery, Seoul National University - Breast Cancer Center, Seoul National University - Department of Internal Medicine, Seoul National University - Breast Cancer Center, Seoul National University - Breast Cancer Center and Seoul National University - Liver Cancer Center

Seoul National University - Seoul National University Hospital, Seoul National University - Liver Research Institute, Sungkyunkwan University - Department of Medicine, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University, Seoul National University, Seoul National University and Seoul National University - Liver Cancer Center