title: Copper IUD: enhancement of its efficacy by the addition of silver and nickel.
mesh_terms: D000328:Adult; D002465:Cell Movement / Q000187:drug effects; D002582:Cervix Mucus; D002986:Clinical Trials as Topic; D003075:Coitus; D003300:Copper / Q000494:pharmacology*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008297:Male; D009532:Nickel / Q000494:pharmacology*; D011247:Pregnancy; D012834:Silver / Q000494:pharmacology*; D013094:Spermatozoa / Q000187:drug effects; D013997:Time Factors
chemical_list: D012834:Silver; D003300:Copper; D009532:Nickel