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Heilberg IP, Schor N.Heilberg IP, et al. Among authors: schor n.Rev Assoc Med Bras (1992). 2003 Jan-Mar;49(1):109-16. doi: 10.1590/s0104-42302003000100043. Epub 2003 Apr 28.Rev Assoc Med Bras (1992). 2003.PMID: 12724822Free article.Review.Portuguese.