The demonstration of a non-estrogenic uterine stimulating and estrogen augmenting substance in pregnant mares' urine.
D000818:Animals; D001826:Body Fluids; D003271:Contraceptive Agents, Female; D004967:Estrogens; D005260:Female; D006736:Horses; D006801:Humans; D010120:Oxytocics; D011247:Pregnancy; D014556:Urine
D003271:Contraceptive Agents, Female; D004967:Estrogens; D010120:Oxytocics
ESTROGENS; URINE