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.
Brochard S, Pedelucq JP, Cormerais A, Thiebaut M, Rémy-Néris O.Brochard S, et al.Ann Readapt Med Phys. 2007 Mar;50(2):78-84. doi: 10.1016/j.annrmp.2006.09.004. Epub 2006 Nov 2.Ann Readapt Med Phys. 2007.PMID: 17137672French.