title: Commentary: Down's syndrome and parity.
authors.affiliation: Department of Public Health and Epidemiology, University of Birmingham.
authors.forename: R J
authors.initials: RJ
authors.lastname: Lilford
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000209:etiology*; D005260:Female; D006801:Humans; D008423:Maternal Age; D008875:Middle Aged; D010298:Parity; D011247:Pregnancy; D012307:Risk Factors