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.
Walters JM, Watt DW, Stevens FM, McCarthy CF.Walters JM, et al. Among authors: mccarthy cf.Br Med J. 1975 Nov 29;4(5995):520. doi: 10.1136/bmj.4.5995.520-b.Br Med J. 1975.PMID: 1192157Free PMC article.No abstract available.
Bourke M, O'Donovan M, Stevens FM, McCarthy CF.Bourke M, et al. Among authors: mccarthy cf.Ir J Med Sci. 1993 May;162(5):171-2. doi: 10.1007/BF02945176.Ir J Med Sci. 1993.PMID: 8335451