title: [Increased occurrence of ectopic pregnancy. A relation to the contraceptive practice?].
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D009664:Norway; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000453:epidemiology / Q000209:etiology*
chemical_list: D003276:Contraceptives, Oral
vernacular_title: Okende hyppighet av extrauterin graviditet. Sammenheng med prevensjonspraksis?