Letrozole in Treating Postmenopausal Women With Ductal Carcinoma in Situ

Delaware Clinical and Laboratory Physicians PA, Newark

Helen F Graham Cancer Center, Newark

Medical Oncology Hematology Consultants PA, Newark

Regional Hematology and Oncology PA, Newark

Christiana Care Health System-Christiana Hospital, Newark

Northwest Hospital Center, Randallstown

Sentara Leigh Hospital, Norfolk

Sentara Hospitals, Norfolk

Sentara Cancer Institute at Sentara CarePlex Hospital, Hampton

University of North Carolina at Chapel Hill, Chapel Hill

Duke University Medical Center, Durham

Margaret R Pardee Memorial Hospital, Hendersonville

Medical University of South Carolina, Charleston

Baptist Health Lexington, Lexington

Saint Elizabeth Medical Center South, Edgewood

Saint Elizabeth Fort Thomas, Fort Thomas

Ohio State University Comprehensive Cancer Center, Columbus

Riverside Methodist Hospital, Columbus

Grant Medical Center, Columbus

Southern Ohio Medical Center, Portsmouth

Sparrow Hospital, Lansing

University of Iowa/Holden Comprehensive Cancer Center, Iowa City

Mayo Clinic Cancer Center, Rochester

Missouri Baptist Medical Center, St Louis

Saint Luke's Hospital of Kansas City, Kansas City

University of Oklahoma Health Sciences Center, Oklahoma City

M. D. Anderson Cancer Center, Houston

Exempla Saint Joseph Hospital, Denver

Cedars Sinai Medical Center, Los Angeles

UCSF Medical Center-Mount Zion, San Francisco

Bay Area Tumor Institute, Oakland

Dana Farber Cancer Institute, Boston