Citation: Tw. Drew, A review of evidence for immunosuppression due to porcine reproductive andrespiratory syndrome virus, VET RES, 31(1), 2000, pp. 27-39
Citation: Tw. Drew et al., The detection of bovine viral diarrhoea virus in bulk milk samples by the use of a single-tube RT-PCR, VET MICROB, 64(2-3), 1999, pp. 145-154