title: Letter: Oral contraceptives and congenital limb-reduction defects.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000209:etiology*; D003276:Contraceptives, Oral / Q000009:adverse effects* / Q000494:pharmacology; D005260:Female; D005298:Fertility / Q000187:drug effects; D005333:Fetus / Q000187:drug effects; D006801:Humans; D017880:Limb Deformities, Congenital; D011247:Pregnancy
chemical_list: D003276:Contraceptives, Oral