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.
Cobbold RJ, Morrison GD, Willcox RR.Cobbold RJ, et al. Among authors: willcox rr.Br Med J. 1968 Dec 14;4(5632):681-2. doi: 10.1136/bmj.4.5632.681.Br Med J. 1968.PMID: 5723388Free PMC article.
WILLCOX RR.WILLCOX RR.Br Med J. 1951 Sep 1;2(4730):527-9. doi: 10.1136/bmj.2.4730.527.Br Med J. 1951.PMID: 14869634Free PMC article.No abstract available.