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.
Henriksen AH, Sue-Chu M, Holmen TL, Langhammer A, Bjermer L.Henriksen AH, et al. Among authors: langhammer a.Eur Respir J. 1999 Feb;13(2):301-6. doi: 10.1034/j.1399-3003.1999.13b14.x.Eur Respir J. 1999.PMID: 10065672Free article.
Langhammer A, Holmen TL, Holmen J.Langhammer A, et al.Tidsskr Nor Laegeforen. 2000 Feb 10;120(4):449-53.Tidsskr Nor Laegeforen. 2000.PMID: 10833935Free article.Norwegian.
Langhammer A, Johnsen R, Holmen J, Gulsvik A, Bjermer L.Langhammer A, et al.J Epidemiol Community Health. 2000 Dec;54(12):917-22. doi: 10.1136/jech.54.12.917.J Epidemiol Community Health. 2000.PMID: 11076988Free PMC article.
Langhammer A, Johnsen R, Gulsvik A, Holmen TL, Bjermer L.Langhammer A, et al.Eur Respir J. 2001 Nov;18(5):770-9. doi: 10.1183/09031936.01.00255301.Eur Respir J. 2001.PMID: 11757626Free article.
Langhammer A, Johnsen R, Gulsvik A, Holmen TL, Bjermer L.Langhammer A, et al.Eur Respir J. 2003 Jun;21(6):1017-23. doi: 10.1183/09031936.03.00053202.Eur Respir J. 2003.PMID: 12797498Free article.
Langhammer A, Norjavaara E, de Verdier MG, Johnsen R, Bjermer L.Langhammer A, et al.Pharmacoepidemiol Drug Saf. 2004 Aug;13(8):569-79. doi: 10.1002/pds.941.Pharmacoepidemiol Drug Saf. 2004.PMID: 15317039