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.
Patey AM, Islam R, Francis JJ, Bryson GL, Grimshaw JM; Canada PRIME Plus Team.Patey AM, et al.Implement Sci. 2012 Jun 9;7:52. doi: 10.1186/1748-5908-7-52.Implement Sci. 2012.PMID: 22682612Free PMC article.