[1] Harvard Med Sch, Massachusetts Gen Hosp, Med Oncol, Canc Ctr, Boston, MA USA
[2] Univ Calif San Francisco, Dept Med, Helen Diller Family Comprehens Canc Ctr, San Francisco, CA USA
[3] Int Breast Canc Ctr IBCC, Med Oncol Dept, Pangaea Oncol, Madrid, Spain
[4] Dana Farber Canc Inst, Dept Med Oncol, Boston, MA USA
[5] Queen Mary Univ London, Barts Canc Inst, London, England
[6] Gilead Sci Inc, Foster City, CA USA
[7] Heidelberg Univ, Med Fac Mannheim, Dept Obstet & Gynecol, Mannheim, Germany