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Jacob T, Lee RJ, Engel JN, Machen TE.Jacob T, et al. Among authors: machen te.Infect Immun. 2002 Nov;70(11):6399-408. doi: 10.1128/IAI.70.11.6399-6408.2002.Infect Immun. 2002.PMID: 12379720Free PMC article.