[Determination of urinary estrogens in the cow at the end of pregnancy].
D000818:Animals; D002417:Cattle; D003271:Contraceptive Agents, Female; D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D011247:Pregnancy / Q000652:urine
D003271:Contraceptive Agents, Female; D004967:Estrogens
ESTROGENS/urine; PREGNANCY/urine