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Akerlund T, Alefjord I, Dohnhammar U, Struwe J, Noren T, Tegmark-Wisell K; Swedish C. difficile Study Group.Akerlund T, et al.Euro Surveill. 2011 Mar 10;16(10):19813. doi: 10.2807/ese.16.10.19813-en.Euro Surveill. 2011.PMID: 21435322Free article.