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.
Perez-Cornago A, Fensom GK, Andrews C, Watts EL, Allen NE, Martin RM, Van Hemelrijck M, Key TJ, Travis RC.Perez-Cornago A, et al. Among authors: allen ne.Br J Cancer. 2020 Dec;123(12):1808-1817. doi: 10.1038/s41416-020-01081-3. Epub 2020 Sep 23.Br J Cancer. 2020.PMID: 32963348Free PMC article.