DOI:
10.1055/s-00034912
Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere
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References
Holtkamp D, Polson D, Torremorell M. et al.
Terminology for classifying swine herds by porcine reproductive and respiratory syndrome virus status.
J Swine Health Prod 2011;
19 (01) 44-56
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