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.
Simons A, Robins LJ, Hooghoudt TE, Meursing BT, Oude Ophuis AJ.Simons A, et al. Among authors: hooghoudt te.Neth Heart J. 2007;15(7-8):257-9. doi: 10.1007/BF03085994.Neth Heart J. 2007.PMID: 17925836Free PMC article.
Lamfers EJ, Hooghoudt TE, Schut A, de Boo T, Verheugt FW.Lamfers EJ, et al. Among authors: hooghoudt te.Neth Heart J. 2002 Nov;10(11):449-454.Neth Heart J. 2002.PMID: 25696044Free PMC article.