The Young Women's Breast Cancer Study

Mayo Clinic, Rochester

University of Colorado Cancer Center, Aurora

Beth-Israel Deaconess Medical Center, Boston

Dana-Farber Cancer Institute, Boston

Massachusetts General Hospital, Boston

MGH/North Shore Cancer Center, Danvers

Cape Cod Hospital, Hyannis

Lowell General Hospital, Lowell

DF/BWCC at Milford Regional Medical Center, Milford

Newton-Wellesley Hospital, Newton

South Shore Hospital, South Weymouth

Dana-Farber/New Hampshire Oncology-Hematology, Londonderry

Sunnybrook Health Sciences Centre, Toronto