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.
Newsom-Davis J, Murray N, Wray D, Lang B, Prior C, Gwilt M, Vincent A.Newsom-Davis J, et al. Among authors: wray d.Muscle Nerve. 1982;5(9S):S17-20.Muscle Nerve. 1982.PMID: 6302493
Lang B, Newsom-Davis J, Wray D, Vincent A, Murray N.Lang B, et al. Among authors: wray d.Lancet. 1981 Aug 1;2(8240):224-6. doi: 10.1016/s0140-6736(81)90474-8.Lancet. 1981.PMID: 6114283