1. Department of Oncology, Mayo Clinic, Rochester, MN 55905, USA
2. Alliance Statistics & Data Center, Weil Cornell Medicine, NY 10065, USA
3. Alliance Statistics & Data Center, Duke University, Durham, NC 27708, USA
4. Alliance Statistics & Data Center, Mayo Clinic, Rochester, MN 55905, USA
5. Division of Breast Surgery, Department of Surgery, Brigham & Women's Hospital, Boston, MA 02115, USA
6. Breast Oncology Program, Dana-Farber/Brigham & Women's Cancer Center, Boston, MA 02115, USA
7. Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
8. Department of Psychiatry & Behavioral Sciences, Breast Medicine Service, Memorial Sloan Kettering Cancer Center, NY 10065, USA
9. Department of Medicine, Memorial Sloan Kettering Cancer Center, NY 10065, USA
10. Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
11. Department of Medical Oncology, Bon Secours Cancer Institute, Midlothian, VA, USA
12. Department of Pharmacy, University of Maryland Medical Center, Baltimore, MD, USA
13. Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
14. Division of Medical Oncology, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
15. Department of Medical Oncology, Dana-Farber/Partners Cancer Care, Boston, MA, USA
16. Department of Medical Oncology, UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA