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.
Lovstakken L, Ibrahim KS, Vitale N, Henriksen ST, Kirkeby-Garstad I, Torp H, Haaverstad R.Lovstakken L, et al. Among authors: torp h.J Am Soc Echocardiogr. 2008 Aug;21(8):969-75. doi: 10.1016/j.echo.2008.01.019. Epub 2008 Mar 20.J Am Soc Echocardiogr. 2008.PMID: 18356020