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.
Frykman V, Beerman B, Rydén L, Rosenqvist M; Medical Products Agency; Swedish Society of Cardiology.Frykman V, et al. Among authors: rosenqvist m.Eur Heart J. 2001 Oct;22(20):1954-9. doi: 10.1053/euhj.2000.2300.Eur Heart J. 2001.PMID: 11601840
Friberg L, Hammar N, Edvardsson N, Rosenqvist M.Friberg L, et al. Among authors: rosenqvist m.Heart. 2009 Jun;95(12):1000-5. doi: 10.1136/hrt.2008.149237. Epub 2009 Mar 19.Heart. 2009.PMID: 19304669