An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Young RF, Severson RK.Young RF, et al. Among authors: severson rk.Breast Cancer Res Treat. 2005 Jan;89(2):111-8. doi: 10.1007/s10549-004-1476-8.Breast Cancer Res Treat. 2005.PMID: 15692752