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.
Hendra TJ, Baguley E, Harris EN, Khamashta MH, Trembath RC, Hughes GR, Yudkin JS.Hendra TJ, et al. Among authors: harris en.Postgrad Med J. 1989 Mar;65(761):140-3. doi: 10.1136/pgmj.65.761.140.Postgrad Med J. 1989.PMID: 2813232Free PMC article.
Asherson RA, Mackay IR, Harris EN.Asherson RA, et al. Among authors: harris en.Br Heart J. 1986 Aug;56(2):190-3. doi: 10.1136/hrt.56.2.190.Br Heart J. 1986.PMID: 3089242Free PMC article.