title: Multiparity and Down's syndrome.
authors.forename: J E
authors.initials: JE
authors.lastname: Haddow
authors.forename: G E
authors.initials: GE
authors.lastname: Palomaki
mesh_terms: D000328:Adult; D004314:Down Syndrome / Q000209:etiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D010298:Parity; D018566:Pregnancy, High-Risk; D012307:Risk Factors