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.
Neukirch F, Weitzenblum E, Liard R, Korobaeff M, Henry C, Orvoën-Frija E, Kauffmann F.Neukirch F, et al. Among authors: liard r.Chest. 1992 Feb;101(2):425-31. doi: 10.1378/chest.101.2.425.Chest. 1992.PMID: 1735267
Zureik M, Liard R, Ségala C, Henry C, Korobaeff M, Neukirch F.Zureik M, et al. Among authors: liard r.Chest. 1995 Feb;107(2):418-23. doi: 10.1378/chest.107.2.418.Chest. 1995.PMID: 7842771
Ségala C, Korobaeff M, Maccario J, Liard R, Annesi I, Neukirch E.Ségala C, et al. Among authors: liard r.Respiration. 1996;63(6):352-7. doi: 10.1159/000196576.Respiration. 1996.PMID: 8933653
Liard R, Zureik M, Aubier M, Korobaeff M, Henry C, Neukirch F.Liard R, et al.Rev Epidemiol Sante Publique. 1995;43(3):242-9.Rev Epidemiol Sante Publique. 1995.PMID: 7784673