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.
CHISHOLM M, SHARP AA.CHISHOLM M, et al. Among authors: sharp aa.Br Med J. 1964 Nov 28;2(5421):1366-9. doi: 10.1136/bmj.2.5421.1366.Br Med J. 1964.PMID: 14208204Free PMC article.No abstract available.