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Studies on transplacental transmissibility of a bovine virus diarrhoea (BVD) vaccine virus in cattle. II. Inoculation of pregnant cows without detectable neutralizing antibodies to BVD virus 90-229 days before parturition (51st to 190th day of gestation) |
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| Authors: | B Liess S Orban H R Frey G Trautwein W Wiefel H Blindow |
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