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.
Husted H, Troelsen A, Kehlet H.Husted H, et al. Among authors: troelsen a.Ugeskr Laeger. 2011 Jun 20;173(25):1802-5.Ugeskr Laeger. 2011.PMID: 21689509Danish.
Gromov K, Fristed JV, Brix M, Troelsen A.Gromov K, et al. Among authors: troelsen a.Dan Med J. 2013 Oct;60(10):A4712.Dan Med J. 2013.PMID: 24083526Free article.
Gromov K, Brix M, Kallemose T, Troelsen A.Gromov K, et al. Among authors: troelsen a.Dan Med J. 2014 Jun;61(6):A4851.Dan Med J. 2014.PMID: 24947623Free article.