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.
Embil JA, Ozere RL, MacDonald SW.Embil JA, et al. Among authors: macdonald sw.Can Med Assoc J. 1978 Nov 18;119(10):1199-203.Can Med Assoc J. 1978.PMID: 743659Free PMC article.
Krause VW, Embree JE, MacDonald SW, Acker WC, Embil JA.Krause VW, et al. Among authors: macdonald sw.Can Med Assoc J. 1982 Jul 1;127(1):36-8.Can Med Assoc J. 1982.PMID: 7083109Free PMC article.No abstract available.