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.
Purrington KS, Gorski D, Simon MS, Hastert TA, Kim S, Rosati R, Schwartz AG, Ratnam M.Purrington KS, et al.Breast Cancer Res Treat. 2020 May;181(1):145-154. doi: 10.1007/s10549-020-05607-4. Epub 2020 Mar 31.Breast Cancer Res Treat. 2020.PMID: 32236827Free PMC article.