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.
Albritton T, Hodge-Sallah S, Akers A, Blumenthal C, O'Brien S, Council B, Muhammad M, Corbie-Smith G.Albritton T, et al.Qual Health Res. 2014 Jul;24(7):969-982. doi: 10.1177/1049732314540053. Epub 2014 Jun 17.Qual Health Res. 2014.PMID: 24939390Free PMC article.