title: Which I.U.D.?
mesh_terms: D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects / Q000592:standards; D007436:Intrauterine Devices, Medicated; D009640:Norethindrone; D010298:Parity; D011247:Pregnancy
chemical_list: D009640:Norethindrone