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.
Luctkar-Flude M, Aiken A, McColl MA, Tranmer J.Luctkar-Flude M, et al. Among authors: aiken a.Fam Pract. 2015 Apr;32(2):129-40. doi: 10.1093/fampra/cmu082. Epub 2014 Dec 14.Fam Pract. 2015.PMID: 25500746Review.