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.
Saleem BR, Pol RA, Slart RH, Reijnen MM, Zeebregts CJ.Saleem BR, et al.Biomed Res Int. 2014;2014:471971. doi: 10.1155/2014/471971. Epub 2014 Aug 19.Biomed Res Int. 2014.PMID: 25210712Free PMC article.Review.