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.
Fiarresga AJ, Ferreira RC, Feliciano J, Pelicano N, de Sousa L, de Ferreira ML, Gonçalves JM, Quininha J.Fiarresga AJ, et al. Among authors: ferreira rc.Rev Port Cardiol. 2005 Jan;24(1):11-20.Rev Port Cardiol. 2005.PMID: 15773663English, Portuguese.
Ferreira RC, do Rosário LB, Andrade C, Fontes JP.Ferreira RC, et al.Rev Port Cardiol. 2000 May;19(5):588-606.Rev Port Cardiol. 2000.PMID: 10916432Portuguese.
Fonseca N, Anjos R, Teixeira A, Rossi R, Menezes I, Ferreira R, Martins M.Fonseca N, et al.Rev Port Cardiol. 2003 Jan;22(1):107-14.Rev Port Cardiol. 2003.PMID: 12712814English, Portuguese.