title: Chromosomes after oral contraception.
authors.forename: R J
authors.initials: RJ
authors.lastname: Hetherington
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000209:etiology*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple
chemical_list: D003276:Contraceptives, Oral