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Bortolotto LA, Safar ME.Bortolotto LA, et al.Arq Bras Cardiol. 2006 Mar;86(3):166-9. doi: 10.1590/s0066-782x2006000300002. Epub 2006 Mar 30.Arq Bras Cardiol. 2006.PMID: 16612446Free article.Review.Portuguese.No abstract available.