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 - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Breast Cancer Center, University of Ulsan - Asan Medical Center, University of Ulsan - Asan Medical Center, Seoul National University - Seoul National University Bundang Hospital, Korea Institute of Radiological and Medical Sciences - Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences - Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences - Korea Cancer Center Hospital, Seoul National University - Seoul National University Bundang Hospital and University of Ulsan - Asan Medical Center

Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Department of Surgery, Seoul National University - Seoul National University Hospital, Seoul National University - Seoul National University Hospital, Seoul National University - Breast Cancer Center, Seoul National University - Breast Cancer Center and Seoul National University - Seoul National University Hospital