Characterization of estrogens in the bovine.
D000818:Animals; D002417:Cattle; D003271:Contraceptive Agents, Female; D004967:Estrogens / Q000032:analysis*; D005260:Female; D006801:Humans; D010920:Placenta; D010924:Placental Extracts; D011247:Pregnancy
D003271:Contraceptive Agents, Female; D004967:Estrogens; D010924:Placental Extracts
ESTROGENS/determination; PLACENTA/extracts