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Bergman M, Nyberg ST, Huovinen P, Paakkari P, Hakanen AJ; Finnish Study Group for Antimicrobial Resistance.Bergman M, et al.Antimicrob Agents Chemother. 2009 Mar;53(3):912-7. doi: 10.1128/AAC.00856-08. Epub 2008 Dec 22.Antimicrob Agents Chemother. 2009.PMID: 19104012Free PMC article.