No abstract available
MeSH terms
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Chromosomes, Human, Pair 21 / genetics
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Comparative Genomic Hybridization
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Female
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Humans
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In Situ Hybridization, Fluorescence
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Infant, Newborn
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Monosomy / genetics*
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Pregnancy
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Pregnancy Complications / genetics
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Prenatal Diagnosis / methods*
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Ultrasonography, Prenatal