No abstract available
MeSH terms
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Female
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Folic Acid / physiology
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Folic Acid Deficiency / complications
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Homocysteine / blood
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Humans
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Neural Tube Defects / etiology*
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Neural Tube Defects / prevention & control*
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Risk Factors
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Vitamin B 12 / physiology
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Vitamin B 12 Deficiency / complications
Substances
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Homocysteine
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Folic Acid
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Vitamin B 12