No abstract available
MeSH terms
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Arginine / administration & dosage
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Calcium / administration & dosage
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Cohort Studies
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Dietary Supplements*
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Female
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Humans
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Magnesium / administration & dosage
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Micronutrients / administration & dosage*
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Plant Bark
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Plant Extracts / administration & dosage
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Pregnancy
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Premature Birth / prevention & control*
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Salix
Substances
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Micronutrients
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Plant Extracts
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Arginine
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Magnesium
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Calcium