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.
Edner M, Kim Y, Hansen KN, Nissen H, Espersen G, La Rosee K, Maru F, Freemantle N, Cleland J, Sogaard P.Edner M, et al. Among authors: sogaard p.Cardiovasc Ultrasound. 2009 Jan 7;7:1. doi: 10.1186/1476-7120-7-1.Cardiovasc Ultrasound. 2009.PMID: 19128462Free PMC article.
Frøbert O, Moesgaard J, Toft E, Poulsen SH, Søgaard P.Frøbert O, et al. Among authors: sogaard p.Cardiovasc Ultrasound. 2004 Nov 2;2:22. doi: 10.1186/1476-7120-2-22.Cardiovasc Ultrasound. 2004.PMID: 15522119Free PMC article.Clinical Trial.