No abstract available
MeSH terms
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Down Syndrome / genetics*
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Female
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Humans
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Italy
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Membrane Transport Proteins / genetics*
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Methylenetetrahydrofolate Reductase (NADPH2) / genetics*
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Polymorphism, Genetic*
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Pregnancy
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Risk
Substances
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Membrane Transport Proteins
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SLC19A2 protein, human
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Methylenetetrahydrofolate Reductase (NADPH2)