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Dellavance A, Leser PG, Andrade LE.Dellavance A, et al. Among authors: leser pg.Rev Assoc Med Bras (1992). 2007 Sep-Oct;53(5):439-45. doi: 10.1590/s0104-42302007000500021.Rev Assoc Med Bras (1992). 2007.PMID: 17952354Free article.Review.Portuguese.
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