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.
Petzold GC, Dreier JP, Einhäupl KM, Arnold G.Petzold GC, et al.Neurology. 2003 Mar 25;60(6):1049. doi: 10.1212/01.wnl.0000049461.94630.63.Neurology. 2003.PMID: 12654985No abstract available.