University of Wisconsin Hospital and Clinics, Madison, Wisconsin, United States
University of Pittsburgh, Pittsburgh, Pennsylvania, United States
Abramson Cancer Center of The University of Pennsylvania, Philadelphia, Pennsylvania, United States
North Central Cancer Treatment Group, Rochester, Minnesota, United States
Johns Hopkins University, Baltimore, Maryland, United States
St Elizabeth Health Center, Youngstown, Ohio, United States
Marshfield Clinic Research Foundation, Marshfield, Wisconsin, United States
Montefiore Medical Center, Bronx, New York, United States
Cancer and Leukemia Group B, Chicago, Illinois, United States
City of Hope, Duarte, California, United States
Gynecologic Oncology Group, Philadelphia, Pennsylvania, United States
Veterans Affairs Medical Center - Pittsburgh, Pittsburgh, Pennsylvania, United States
CCOP - Scott and White Hospital, Temple, Texas, United States
Veterans Affairs Medical Center - Madison, Madison, Wisconsin, United States