No abstract available
MeSH terms
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Aneuploidy*
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Chromosome Disorders / diagnosis*
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Chromosomes, Human, Pair 18
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Chromosomes, Human, Pair 21
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Congresses as Topic
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DNA / analysis*
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Female
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Genetic Techniques
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Humans
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In Situ Hybridization, Fluorescence
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Pregnancy
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Prenatal Diagnosis / methods*
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Trisomy