Trastuzumab Emtansine for Residual Invasive HER2-Positive Breast Cancer

German Breast group, National Taiwan University Hospital, Instituto do Câncer do Estado de São Paulo, Cardiovascular Center Bethanien, UF Health Cancer Center, University of Florida Health Science Center, University of Florida Health, Orlando Health, Helios Hospital Berlin-Buch, NSABP Foundation, Allegheny Health Network, UPMC Hillman Cancer Center, German Cancer Research Center, University Hospital Heidelberg, Heidelberg University, National Center for Tumor Diseases, Hospital Universitario La Paz, Evangelische Kliniken Gelsenkirchen, Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, Inserm, Providence Portland Medical Center, Instituto Nacional de Cancerología, Stanford University, Sana Klinikum Offenbach, Yale University, Smilow Cancer Hospital, Yale Cancer Center, Universitätsklinikum Erlangen, Comprehensive Cancer Center Erlangen, Cancer Trials Ireland, Krankenhaus Jerusalem, Mammazentrum Hamburg, Fudan University Shanghai Cancer Center, Ospedale Papa Giovanni XXIII, Roche (United Kingdom), Virginia Commonwealth University