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Silveira L Jr, Paleckis LG, Nicolau RA, Nogueira GV, Busanello RZ, Mardegan DA, Fonseca SM, Zângaro RA, Pacheco MT.Silveira L Jr, et al. Among authors: zangaro ra.Rev Assoc Med Bras (1992). 2004 Jul-Sep;50(3):297-301. doi: 10.1590/s0104-42302004000300038. Epub 2004 Oct 21.Rev Assoc Med Bras (1992). 2004.PMID: 15499483Free article.Portuguese.