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Chandler RE, Hedberg K, Cieslak PR.Chandler RE, et al. Among authors: hedberg k.Infect Control Hosp Epidemiol. 2007 Feb;28(2):116-22. doi: 10.1086/511795. Epub 2007 Jan 31.Infect Control Hosp Epidemiol. 2007.PMID: 17265391