title: [How to improve screening of Down syndrome].
authors.forename: Markku
authors.initials: M
authors.lastname: Ryynänen
authors.forename: Aydin
authors.initials: A
authors.lastname: Tekay
authors.forename: Marko
authors.initials: M
authors.lastname: Niemimaa
authors.forename: Pekka
authors.initials: P
authors.lastname: Taipale
authors.forename: Seppo
authors.initials: S
authors.lastname: Heinonen
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005387:Finland; D005820:Genetic Testing / Q000458:organization & administration*; D005865:Gestational Age; D006301:Health Services Needs and Demand; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000592:standards*; D016730:Program Development; D018570:Risk Assessment