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Pires LF, Villanueva FC, Dias NM, Bacchi OO, Reichardt K.Pires LF, et al.An Acad Bras Cienc. 2011 Sep;83(3):1097-108. doi: 10.1590/s0001-37652011005000032. Epub 2011 Aug 5.An Acad Bras Cienc. 2011.PMID: 21830003Free article.