Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer
National Cancer Institute (NCI)
National Cancer Institute (NCI)
M.D. Anderson Cancer Center
Radiation Therapy Oncology Group
Alliance Foundation Trials, LLC.
University of Utah
University of Southern California
Georgetown University
Institut Bergonié
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Thomas Jefferson University
Ohio State University Comprehensive Cancer Center
Alliance for Clinical Trials in Oncology