No abstract available
MeSH terms
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Abnormalities, Multiple / diagnosis*
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Abnormalities, Multiple / epidemiology
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Abnormalities, Multiple / genetics
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Adult
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Algorithms
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Chromosomes, Human, Pair 13 / genetics*
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Chromosomes, Human, Pair 18 / genetics*
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Down Syndrome / genetics*
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Female
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Humans
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Mass Screening / methods*
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Netherlands / epidemiology
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Pregnancy
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Pregnancy Trimester, First
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Risk Factors
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Trisomy / genetics*