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.
Darteh EK, Acquah E, Kumi-Kyereme A.Darteh EK, et al.BMC Public Health. 2014 May 26;14:504. doi: 10.1186/1471-2458-14-504.BMC Public Health. 2014.PMID: 24884653Free PMC article.