title: Short communications.
mesh_terms: D000818:Animals; D003300:Copper / Q000494:pharmacology*; D004573:Electrolytes / Q000032:analysis*; D005260:Female; D007434:Intrauterine Devices; D009757:Nylons; D051381:Rats; D014599:Uterus / Q000032:analysis*
chemical_list: D004573:Electrolytes; D009757:Nylons; D003300:Copper