No abstract available
Publication types
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Case Reports
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Chorionic Gonadotropin, beta Subunit, Human / blood*
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Chromosomes, Human, Pair 16
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Chromosomes, Human, Pair 22
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Female
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Humans
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Karyotype
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Nuchal Translucency Measurement*
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Pregnancy
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Pregnancy Trimester, First
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Pregnancy-Associated Plasma Protein-A / metabolism*
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Trisomy / diagnosis*
Substances
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Chorionic Gonadotropin, beta Subunit, Human
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Pregnancy-Associated Plasma Protein-A