Université Libre de Bruxelles (ULB) - Institute Jules Bordet, University of California, San Francisco (UCSF), European Organisation for Research and Treatment of Cancer (EORTC), European Organisation for Research and Treatment of Cancer (EORTC), Gustave Roussy Villejuif, Université Paris VI Pierre et Marie Curie - Institut Curie, Catholic University of Louvain (UCL) - CHU Site Sainte-Elisabeth, Institut Curie - Department of Medical Oncology, Noordwest Ziekenhuisgroep, Alrijne Ziekenhuis, Centre Georges-Francois Leclerc, Jeroen Bosch Ziekenhuis, European Institute of Oncology (IEO) IRCCS, Agendia, University of Lausanne - Swiss Institute of Bioinformatics (SIB), Université Libre de Bruxelles (ULB) - Institute Jules Bordet, University of Navarra - Clínica Universidad de Navarra, Kliniken Essen-Mitte - Breast Unit, Università degli Studi di Genova - Gruppo Oncologico Italiano di Ricerca Clinica (GOIRC), Baylor College of Medicine, Institute of Oncology, University of Lausanne - Lausanne University Hospital, Breast International Group Headquarters, Breast International Group Headquarters, University of Texas Health Science Center at San Antonio, Europa Donna-European Breast Cancer Coalition, Merck & Co., Inc., European Organisation for Research and Treatment of Cancer (EORTC), European Organisation for Research and Treatment of Cancer (EORTC), European Organisation for Research and Treatment of Cancer (EORTC), Champalimaud Foundation - Champalimaud Clinical Center and Netherlands Cancer Institute

Champalimaud Foundation - Champalimaud Clinical Center, Monash University, affiliation not provided to SSRN, Breast Center EUSOMA, affiliation not provided to SSRN, affiliation not provided to SSRN, Champalimaud Foundation, Fondazione IRCCS Istituto Nazionale dei Tumori, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Navarra - Clínica Universidad de Navarra and Champalimaud Clinical Center/Champalimaud Foundation and ABC Global Alliance - Breast Unit

University of Perugia, affiliation not provided to SSRN, affiliation not provided to SSRN, Breast Center EUSOMA, NHS Foundation Trust - Royal Marsden Hospital, University of Nottingham - Royal Derby Hospital, University of Oslo - Akershus University Hospital, University of Navarra - Clínica Universidad de Navarra, affiliation not provided to SSRN, IRCCS Policlinico San Donato, Medical University of Gdańsk, University of Antwerp and European Institute of Oncology (IEO) IRCCS - Division of New Drugs and Early Drug Development for Innovative Therapies

University of Catania, IRCCS Humanitas Research Hospital, affiliation not provided to SSRN, affiliation not provided to SSRN, Breast Center EUSOMA, University of Perugia, NHS Foundation Trust - Royal Marsden Hospital, University of Nottingham - Royal Derby Hospital, European Institute of Oncology (IEO) IRCCS - Division of New Drugs and Early Drug Development for Innovative Therapies, University of Oslo - Akershus University Hospital, University of Navarra - Clínica Universidad de Navarra, affiliation not provided to SSRN, IRCCS Policlinico San Donato, Medical University of Gdańsk, University of Antwerp and affiliation not provided to SSRN