[1] UCSF Helen Diller Family Comprehens Canc Ctr, Breast Canc Ctr, San Francisco, CA USA
[2] Pfizer Inc, Hlth Econ, San Francisco, CA USA
[3] Tech Univ Munich, Obs Gyn, Munich, Germany
[4] Univ Calif Los Angeles, Hematol Oncol, Santa Monica, CA USA
[5] Pfizer Inc, Oncol, San Francisco, CA USA
[6] Univ Texas MD Anderson Canc Ctr, Breast Med Oncol, Houston, TX 77030 USA