Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Benefits and Harms of Risk-Reducing Medication (Tamoxifen), Screening Mammography, and Supplemental Screening With Magnetic Resonance Imaging in 35-, 50-, and 65-Year-Old Women on the Basis of History of Breast Biopsy and Family History of Breast Cancer
