1. From the International Breast Cancer Center, Pangaea Oncology, Quirónsalud Group, Barcelona (J.C., J.P.-G.), and the Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid (J.C.) — both in Spain; the Department of Medicine, University of California San Francisco Comprehensive Cancer Center, San Francisco (H.S.R.); Princess Margaret Cancer Centre, Toronto (D.W.C.); Seoul National University Hospital, Cancer Research Institute, Seoul National University...