Sasser, R G Characteristics of pregnancy-specific protein B in cattle. [electronic resource] - Journal of reproduction and fertility. Supplement 1989 - 109-13 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0449-3087 Subjects--Topical Terms: AnimalsCattleFemaleFetal Death--diagnosisGoatsImmunohistochemistryPregnancyPregnancy Proteins--analysisPregnancy Tests--veterinaryPregnancy, Animal--metabolismRadioimmunoassaySheepTrophoblasts--analysis