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.
Borowiec-Kocańda A, Woźniak J, Maciag A, Wiernikowski A, Szwed H.Borowiec-Kocańda A, et al. Among authors: wozniak j.Kardiol Pol. 2005 Apr;62(4):372-5; discussion 375.Kardiol Pol. 2005.PMID: 15928741Polish.