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.
Savvidou A, Knudsen S, Olsson-Engman M, Gammeltoft S, Jennum P, Palm L.Savvidou A, et al. Among authors: gammeltoft s.Sleep. 2013 Jan 1;36(1):147-8. doi: 10.5665/sleep.2320.Sleep. 2013.PMID: 23288981Free PMC article.
Klein AB, Jennum P, Knudsen S, Gammeltoft S, Mikkelsen JD.Klein AB, et al. Among authors: gammeltoft s.Neurosci Lett. 2013 Jun 7;544:31-5. doi: 10.1016/j.neulet.2013.03.031. Epub 2013 Apr 6.Neurosci Lett. 2013.PMID: 23570723