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.
Backer V, Harving H, Søes-Petersen U, Ulrik CS, Plaschke P, Lange P.Backer V, et al. Among authors: soes petersen u.Clin Respir J. 2008 Jan;2(1):54-9. doi: 10.1111/j.1752-699X.2007.00021.x.Clin Respir J. 2008.PMID: 20298305
Backer V, Ulrik CS, Harving H, Lange P, Søes-Petersen U, Plaschke PP.Backer V, et al. Among authors: soes petersen u.Allergy Asthma Proc. 2007 May-Jun;28(3):375-81. doi: 10.2500/aap.2007.28.3001.Allergy Asthma Proc. 2007.PMID: 17619570