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Carvalho AC, Guedes MM, de Souza AL, Trevisan MT, Lima AF, Santos FA, Rao VS.Carvalho AC, et al. Among authors: rao vs.Planta Med. 2007 Oct;73(13):1372-6. doi: 10.1055/s-2007-990231. Epub 2007 Oct 4.Planta Med. 2007.PMID: 17918041