title: A new delivery system for metals as contraceptives in animals.
mesh_terms: D000818:Animals; D002584:Cervix Uteri / Q000187:drug effects; D003270:Contraceptive Agents / Q000008:administration & dosage*; D005260:Female; D008670:Metals / Q000008:administration & dosage / Q000494:pharmacology; D011817:Rabbits; D051381:Rats; D014599:Uterus / Q000187:drug effects
chemical_list: D003270:Contraceptive Agents; D008670:Metals