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.
Roche F, Pichot V, Sforza E, Court-Fortune I, Duverney D, Costes F, Garet M, Barthélémy JC.Roche F, et al. Among authors: duverney d.Eur Respir J. 2003 Dec;22(6):937-42. doi: 10.1183/09031936.03.00104902.Eur Respir J. 2003.PMID: 14680082Free article.