Authors: Rafael Michel de Macedo; José Rocha Faria-Neto; Costantino Ortiz Costantini; Dayane Casali; Andrea Pires Muller; Costantino Roberto Costantini; Katherine Athayde Teixeira de Carvalho; Luiz César Guarita-Souza Journal: World J Cardiol Date: 2011-07-26