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.
Berwald N, Cheng S, Augenbraun M, Abu-Lawi K, Lucchesi M, Zehtabchi S.Berwald N, et al. Among authors: zehtabchi s.Acad Emerg Med. 2009 Apr;16(4):360-3. doi: 10.1111/j.1553-2712.2009.00359.x. Epub 2009 Feb 11.Acad Emerg Med. 2009.PMID: 19220203Free article.