Metformin Hydrochloride in Preventing Breast Cancer in Patients With Atypical Hyperplasia or In Situ Breast Cancer
Alliance for Clinical Trials in Oncology
Alliance for Clinical Trials in Oncology
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Vanderbilt-Ingram Cancer Center
Canadian Cancer Trials Group
University of Arizona
Columbia University
Ozmosis Research Inc.
M.D. Anderson Cancer Center
University of California, San Diego
Avera McKennan Hospital & University Health Center
Dana-Farber Cancer Institute
M.D. Anderson Cancer Center