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.
Polak JF, Szklo M, O'Leary DH.Polak JF, et al. Among authors: o leary dh.J Am Soc Echocardiogr. 2015 Sep;28(9):1114-21. doi: 10.1016/j.echo.2015.04.001. Epub 2015 May 2.J Am Soc Echocardiogr. 2015.PMID: 25944425Free PMC article.
Polak JF, Szklo M, O'Leary DH.Polak JF, et al. Among authors: o leary dh.J Am Heart Assoc. 2017 Jan 21;6(1):e004612. doi: 10.1161/JAHA.116.004612.J Am Heart Assoc. 2017.PMID: 28110311Free PMC article.