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Gerber, Andrea; Thoma, Ruedi; Vretou, Evangelia; Psarrou, Evgenia; Kaiser, Carmen; Doherr, Marcus G; Zimmermann, Dieter R; Polkinghorne, Adam; Pospischil, Andreas; Borel, Nicole (2007). Ovine Enzootic Abortion (OEA): a comparison of antibody responses in vaccinated and naturally-infected swiss sheep over a two year period. BMC veterinary research, 3, p. 24. London: BioMed Central 10.1186/1746-6148-3-24
