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.
Lanfear DE, Jones PG, Marsh S, Cresci S, Spertus JA, McLeod HL.Lanfear DE, et al.Am Heart J. 2007 Sep;154(3):561-6. doi: 10.1016/j.ahj.2007.04.059.Am Heart J. 2007.PMID: 17719307
Lanfear DE, Hrobowski TN, Peterson EL, Wells KE, Swadia TV, Spertus JA, Williams LK.Lanfear DE, et al.Circ Heart Fail. 2012 Mar 1;5(2):202-8. doi: 10.1161/CIRCHEARTFAILURE.111.965780. Epub 2012 Jan 19.Circ Heart Fail. 2012.PMID: 22260944Free PMC article.