1. Medical Oncology Department, CHU Sart Tilman Liege and Laboratory of Human Genetics, GIGA Research Institute, University of Liège, Liège, Belgium
2. Oncology Department, University of Genova and IRCCS Ospedale Policlinico San Martino, Genova, Italy
3. Oncology and Hemato-Oncology, European Institute of Oncology, IRCCS and University of Milan, Milan, Italy
4. Breast Center, Department OB&GYN and CCCLMU, LMU University Hospital, Munich, Germany
5. Department of Medicine I, Division of Oncology, Comprehensive Cancer Center, Medical University of Vienna, Wien, Austria
6. Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
7. Medical Oncology, Maastricht University Medical Center (MUMC), Maastricht, Netherlands
8. Departamento de Medicina, Instituto de Investigación Sanitaria Gregorio Marañón Universidad Complutense, Madrid, Spain
9. Department of Medical Oncology, UZ Gent, Gent, Belgium
10. UO Patologia Mammaria e Ricerca Traslazionale—Breast Unit, Azienda Socio-Sanitaria, Territoriale di Cremona and University of Trieste, Cremona, Italy
11. Medical Oncology, Institut de Cancérologie de l'Ouest-Pays de la Loire, Saint-Herblain, France
12. Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL
13. Yale Cancer Center, Yale School of Medicine, New Haven, CT
14. Oncology Department, University Hospital Antwerp (UZA), Edegem, Belgium
15. Hemato-Oncology Department, Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg
16. Oncology Department, IOB Institute of Oncology, Quiron Group, Madrid, Barcelona, Spain
17. Vall d'Hebron Institute of Oncology (VHIO), Centro Cellex, Carrer de Natzaret, Barcelona, Spain
18. Medical Oncology, Breast Center Eastern Switzerland, St Gallen, Switzerland
19. University of Basel, St Gallen, Switzerland
20. Medical Oncology, University Hospital 12 de Octubre, Madrid, Spain
21. Breast Care Center, University of California San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, CA
22. Medical Oncology, CHU Sart Tilman Liège and University of Liège, Liège, Belgium