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Rates of trisomies 21, 18, 13 and other chromosome abnormalities in about 20 000 prenatal studies compared with estimated rates in live births

FertilityCytogeneticsGeneticsReproductive HealthGenetic EpidemiologyGynecologyEmbryologyPublic HealthChromosome 22Other Chromosome AbnormalitiesDown SyndromeMaternal HealthAneuploidyPrenatal DiagnosisLive BirthsPrenatal TestingTrisomies 21PediatricsFetal ComplicationMedicine