title: Use-effectiveness of the copper-T300 during the first year.
mesh_terms: D000328:Adult; D003267:Contraception; D003300:Copper / Q000494:pharmacology; D004717:Endometrium / Q000187:drug effects; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007434:Intrauterine Devices; D010298:Parity; D011247:Pregnancy; D011275:Pregnancy, Unwanted
chemical_list: D003300:Copper