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Leigh Brown AJ, Frost SD, Mathews WC, Dawson K, Hellmann NS, Daar ES, Richman DD, Little SJ.Leigh Brown AJ, et al. Among authors: hellmann ns.J Infect Dis. 2003 Feb 15;187(4):683-6. doi: 10.1086/367989. Epub 2003 Jan 29.J Infect Dis. 2003.PMID: 12599087