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 DP, Laursen CB, Hallas J, Pedersen C, Lassen AT.Henriksen DP, et al. Among authors: laursen cb.Emerg Med J. 2015 Nov;32(11):846-53. doi: 10.1136/emermed-2014-204565. Epub 2015 Mar 11.Emerg Med J. 2015.PMID: 25762652