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da Silva RA, Leonardo MR, da Silva LA, de Castro LM, Rosa AL, de Oliveira PT.da Silva RA, et al.J Endod. 2008 Dec;34(12):1485-9. doi: 10.1016/j.joen.2008.08.031. Epub 2008 Oct 23.J Endod. 2008.PMID: 19026879