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Brocco MC, Paulo DN, Baptista JF, Carraretto AR, Ferrari TA, de Azevedo TC, da Silva AL.Brocco MC, et al. Among authors: carraretto ar.Rev Bras Anestesiol. 2008 Sep-Oct;58(5):474-9, 470-4. doi: 10.1590/s0034-70942008000500005.Rev Bras Anestesiol. 2008.PMID: 19382406English, Portuguese.