title: One in three.
authors.forename: J O
authors.initials: JO
authors.lastname: Drife
mesh_terms: D000028:Abortion, Induced / Q000706:statistics & numerical data*; D000032:Abortion, Therapeutic / Q000706:statistics & numerical data; D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D011247:Pregnancy; D012736:Sex Education; D006113:United Kingdom / Q000453:epidemiology