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. 1998 Feb 7;142(6):142-3.
doi: 10.1136/vr.142.6.142.

Evidence of freedom from porcine reproductive and respiratory syndrome virus infection in Switzerland

N Canon  1 , L Audigé, H Denac, M Hofmann, C Griot
Affiliations

Evidence of freedom from porcine reproductive and respiratory syndrome virus infection in Switzerland

N Canon et al. Vet Rec. .
No abstract available

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