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Gibson FC 3rd, Gonzalez DA, Wong J, Genco CA.Gibson FC 3rd, et al.Infect Immun. 2004 Apr;72(4):2408-11. doi: 10.1128/IAI.72.4.2408-2411.2004.Infect Immun. 2004.PMID: 15039370Free PMC article.