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Mitchell CM, Hitti JE, Agnew KJ, Fredricks DN.Mitchell CM, et al. Among authors: fredricks dn.BMC Infect Dis. 2009 Jun 10;9:89. doi: 10.1186/1471-2334-9-89.BMC Infect Dis. 2009.PMID: 19515236Free PMC article.Clinical Trial.