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Ferreira I, Dos L, Tornos P, Nicolau I, Permanyer-Miralda G, Soler-Soler J.Ferreira I, et al. Among authors: tornos p.Heart. 2003 May;89(5):527-30. doi: 10.1136/heart.89.5.527.Heart. 2003.PMID: 12695457Free PMC article.