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.
Crawford TO, Mitchell WG.Crawford TO, et al. Among authors: mitchell wg.Neurology. 1989 Apr;39(4):609. doi: 10.1212/wnl.39.4.609-b.Neurology. 1989.PMID: 2927691No abstract available.
Crawford TO, Mitchell WG, Snodgrass SR.Crawford TO, et al. Among authors: mitchell wg.Neurology. 1987 Feb;37(2):190-5. doi: 10.1212/wnl.37.2.190.Neurology. 1987.PMID: 3808299