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.
McAlister FA, Teo KK.McAlister FA, et al.Postgrad Med J. 1997 Apr;73(858):194-200. doi: 10.1136/pgmj.73.858.194.Postgrad Med J. 1997.PMID: 9156120Free PMC article.Review.
McAlister FA, Campbell NR, Zarnke K, Levine M, Graham ID.McAlister FA, et al.CMAJ. 2001 Feb 20;164(4):517-22.CMAJ. 2001.PMID: 11233874Free PMC article.Review.