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.
Cloud GC, Crawley F, Clifton A, McCabe DJ, Brown MM, Markus HS.Cloud GC, et al. Among authors: markus hs.J Neurol Neurosurg Psychiatry. 2003 May;74(5):586-90. doi: 10.1136/jnnp.74.5.586.J Neurol Neurosurg Psychiatry. 2003.PMID: 12700299Free PMC article.Clinical Trial.
Khan S, Rich P, Clifton A, Markus HS.Khan S, et al. Among authors: markus hs.Stroke. 2009 Nov;40(11):3499-503. doi: 10.1161/STROKEAHA.109.556035. Epub 2009 Sep 17.Stroke. 2009.PMID: 19762707