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Osek J, Winiarczyk S.Osek J, et al.J Vet Med B Infect Dis Vet Public Health. 2001 Feb;48(1):67-72. doi: 10.1046/j.1439-0450.2001.00416.x.J Vet Med B Infect Dis Vet Public Health. 2001.PMID: 11254100