No abstract available
MeSH terms
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Canada
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Female
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Folic Acid / administration & dosage*
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Gynecology
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Humans
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Neural Tube Defects / prevention & control*
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Obstetrics
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Practice Guidelines as Topic*
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Preconception Care*
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Pregnancy
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Prenatal Care
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Risk
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Societies, Medical
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Vitamins / administration & dosage*