No abstract available
MeSH terms
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Cell-Free Nucleic Acids
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Chromosomes, Human, Pair 13
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Chromosomes, Human, Pair 18
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Down Syndrome*
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Heparin, Low-Molecular-Weight*
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Humans
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Prenatal Diagnosis
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Trisomy
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Trisomy 13 Syndrome
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Trisomy 18 Syndrome
Substances
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Cell-Free Nucleic Acids
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Heparin, Low-Molecular-Weight