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Scheffel RS, Bortolanza D, Weber CS, Costa LA, Canani LH, Santos KG, Crispim D, Roisenberg I, Lisbôa HR, Tres GS, Tschiedel B, Gross JL.Scheffel RS, et al. Among authors: canani lh.Rev Assoc Med Bras (1992). 2004 Jul-Sep;50(3):263-7. doi: 10.1590/s0104-42302004000300031. Epub 2004 Oct 21.Rev Assoc Med Bras (1992). 2004.PMID: 15499476Free article.Portuguese.