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Belli KC, Callegaro CC, Richter CM, Klafke JZ, Stein R, Viecili PR.Belli KC, et al. Among authors: callegaro cc.Arq Bras Cardiol. 2012 Sep;99(3):811-7. doi: 10.1590/s0066-782x2012005000075. Epub 2012 Aug 9.Arq Bras Cardiol. 2012.PMID: 22886228Free article.English, Portuguese.