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Martelli, P; Ferrari, L; Ferrarini, G; De Angelis, E; Catella, A; Benetti, M; Nathues, Heiko; Canelli, E; Borghetti, P (2015). Influence of repeated porcine circovirus type 2 vaccination on sows’ immune response. Veterinary record, 177(12), p. 305. British Veterinary Association 10.1136/vr.103322
