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Beekmann SE, Fahey BJ, Gerberding JL, Henderson DK.Beekmann SE, et al. Among authors: fahey bj.Infect Control Hosp Epidemiol. 1990 Jul;11(7):371-9. doi: 10.1086/646189.Infect Control Hosp Epidemiol. 1990.PMID: 2165506Review.