[1] Milan & Champalimaud Canc Ctr, European Sch Oncol, Lisbon, Portugal
[2] Harvard Univ, Sch Med, Dana Farber Canc Inst, Brigham & Womens Hosp, Boston, MA 02115 USA
[3] Mem Sloan Kettering Canc Ctr, Div Solid Tumor Oncol, New York, NY 10021 USA
[4] Mem Sloan Kettering Canc Ctr, Breast Canc Program, New York, NY 10021 USA
[5] Inst Res Biomed, Growth Control & Canc Metastasis Programme, Barcelona, Spain
[6] Dana Farber Canc Inst, Breast Oncol Ctr, Boston, MA 02115 USA
[7] Univ Munich, Klinikum Grosshadern, D-80539 Munich, Germany
[8] European Sch Oncol, Milan & Maugeri Fdn Breast Unit, Pavia, Italy