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.
Helmcke F, de Souza A, Nanda NC, Villacosta I, Gatewood R Jr, Colvin E, Soto B.Helmcke F, et al. Among authors: nanda nc.Am J Cardiol. 1989 May 1;63(15):1112-6. doi: 10.1016/0002-9149(89)90088-x.Am J Cardiol. 1989.PMID: 2705382
Samdarshi TE, Hill DL, Nanda NC.Samdarshi TE, et al. Among authors: nanda nc.Am Heart J. 1991 Aug;122(2):571-3. doi: 10.1016/0002-8703(91)91018-i.Am Heart J. 1991.PMID: 1858643No abstract available.