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.
Costes F, Court-Fortune I, Fournel P, Vergnon JM, Emonot A, Geyssant A.Costes F, et al.Rev Mal Respir. 1995;12(4):359-64.Rev Mal Respir. 1995.PMID: 7481048French.
Lacaze O, Khaddage A, Court-Fortune I, Tiffet O, Vergnon JM.Lacaze O, et al.Rev Mal Respir. 2002 Oct;19(5 Pt 1):648-50.Rev Mal Respir. 2002.PMID: 12473954French.