[1] Univ Autonoma Barcelona, Vall dHebron Univ Hosp, Barcelona, Spain
[2] Univ Autonoma Barcelona, VHIO, Barcelona, Spain
[3] European Soc Med Oncol, Lugano, Switzerland
[4] San Camillo Forlanini Hosp, Med Oncol, Rome, Italy
[5] CUF Hosp, Canc Ctr, Lisbon, Portugal
[6] Champalimaud Clin Ctr, Breast Unit, Lisbon, Portugal
[7] Fondaz IRCCS Natl Canc Inst, Milan, Italy
[8] Clin Hosp, Hematol Med Oncol Dept, Valencia, Spain
[9] Gustave Roussy Canc Campus Grand Paris, Villejuif, France
[10] Canc Inst Ion Chiricuta, Dept Breast Tumors, Cluj Napoca, Romania
[11] Med Univ Gdansk, Dept Oncol & Radiotherapy, Gdansk, Poland
[12] Univ Ioannina, Ioannina, Greece
[13] Univ Vaudois, Ctr Hospitalier, Oncol Dept, Lausanne, Switzerland
[14] Hosp Ctr Emile Mayrisch, Dept Hemato Oncol, Esch Sur Alzette, Luxembourg
[15] Med Univ Vienna, Dept Med 1, Clin Div Oncol, Vienna, Austria
[16] Netherlands Canc Inst, Amsterdam, Netherlands
[17] Univ Hosp Zurich, Zurich, Switzerland
[18] Univ Naples 2, Naples, Italy