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Hajdu A, Vold L, Østmo TA, Helleve A, Helgebostad SR, Krogh T, Robertson L, de Jong B, Nygård K.Hajdu A, et al.BMC Infect Dis. 2008 Nov 1;8:152. doi: 10.1186/1471-2334-8-152.BMC Infect Dis. 2008.PMID: 18976495Free PMC article.