1. From the Departments of Radiology (R.K., J.M.C., S.H.L., S.Y.K., E.S.K., N.C., W.K.M.) and Breast Surgery (H.B.L.), Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea; and Department of Healthcare Center, Seoul Metropolitan Government–Seoul National University Boramae Medical Center, Seoul, Republic of Korea (R.K.).