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Pérez-Pérez GI, Brown WR, Cover TL, Dunn BE, Cao P, Blaser MJ.Pérez-Pérez GI, et al. Among authors: cao p.Clin Diagn Lab Immunol. 1994 May;1(3):325-9. doi: 10.1128/cdli.1.3.325-329.1994.Clin Diagn Lab Immunol. 1994.PMID: 7496970Free PMC article.