title: Unexpected pregnancy in a woman using an intrauterine device and receiving steroid therapy.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007435:Intrauterine Devices, Copper; D007500:Iritis / Q000188:drug therapy; D011241:Prednisone / Q000627:therapeutic use*; D011247:Pregnancy
chemical_list: D011241:Prednisone