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Nyhlén A, Ljungberg B, Nilsson-Ehle I, Nord CE.Nyhlén A, et al. Among authors: nilsson ehle i.Scand J Infect Dis. 2002;34(1):17-21. doi: 10.1080/00365540110076994.Scand J Infect Dis. 2002.PMID: 11874159