title: Risk of ectopic pregnancy.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000209:etiology*; D012306:Risk; D006113:United Kingdom