title: The contraceptive action of impeding oestrogens. I. Activity of oestriol in the rat.
mesh_terms: D000818:Animals; D003270:Contraceptive Agents / Q000494:pharmacology*; D010064:Embryo Implantation / Q000187:drug effects*; D004964:Estriol / Q000008:administration & dosage / Q000494:pharmacology*; D004965:Estrogen Antagonists; D005260:Female; D007279:Injections, Subcutaneous; D008297:Male; D011247:Pregnancy; D051381:Rats; D011955:Receptors, Drug / Q000187:drug effects
chemical_list: D003270:Contraceptive Agents; D004965:Estrogen Antagonists; D011955:Receptors, Drug; D004964:Estriol