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.
Brink Y, Louw QA.Brink Y, et al. Among authors: louw qa.Man Ther. 2013 Aug;18(4):281-8. doi: 10.1016/j.math.2012.11.003. Epub 2013 Jan 5.Man Ther. 2013.PMID: 23298827Review.