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.
Kalman JM, Fitzpatrick AP, Olgin JE, Chin MC, Lee RJ, Scheinman MM, Lesh MD.Kalman JM, et al. Among authors: olgin je.Am Heart J. 1997 Jan;133(1):8-18. doi: 10.1016/s0002-8703(97)70242-4.Am Heart J. 1997.PMID: 9006285