No abstract available
MeSH terms
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Female
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Folic Acid / therapeutic use
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Food, Fortified
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Humans
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Incidence
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Neural Tube Defects / diagnosis*
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Neural Tube Defects / epidemiology
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Neural Tube Defects / etiology
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Neural Tube Defects / prevention & control*
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Pregnancy
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Prenatal Diagnosis
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Risk Factors