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.
Ward DE, Camm AJ, Pedoe DS.Ward DE, et al. Among authors: camm aj.Jpn Heart J. 1979 Jul;20(4):571-6. doi: 10.1536/ihj.20.571.Jpn Heart J. 1979.PMID: 470151
Ward DE, Camm AJ, Spurrell RA.Ward DE, et al. Among authors: camm aj.Br Heart J. 1979 Aug;42(2):192-200. doi: 10.1136/hrt.42.2.192.Br Heart J. 1979.PMID: 486281Free PMC article.