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Leid JG, Kerr M, Selgado C, Johnson C, Moreno G, Smith A, Shirtliff ME, O'Toole GA, Cope EK.Leid JG, et al. Among authors: shirtliff me.Infect Immun. 2009 Oct;77(10):4559-66. doi: 10.1128/IAI.00075-09. Epub 2009 Aug 3.Infect Immun. 2009.PMID: 19651866Free PMC article.