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Oliveira PD, Farre L, Bittencourt AL.Oliveira PD, et al. Among authors: bittencourt al.Rev Assoc Med Bras (1992). 2016 Oct;62(7):691-700. doi: 10.1590/1806-9282.62.07.691.Rev Assoc Med Bras (1992). 2016.PMID: 27925051Free article.Review.