title: Re: "parity and the risk of Down's syndrome".
authors.forename: Maurizio
authors.initials: M
authors.lastname: Clementi
authors.forename: Sebastiano
authors.initials: S
authors.lastname: Bianca
authors.forename: Romano
authors.initials: R
authors.lastname: Tenconi
mesh_terms: D000328:Adult; D015984:Causality; D004314:Down Syndrome / Q000453:epidemiology / Q000209:etiology; D005260:Female; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008423:Maternal Age; D010298:Parity; D011159:Population Surveillance; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D012042:Registries