No abstract available
MeSH terms
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Adolescent
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Bone Density / drug effects
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Cross-Sectional Studies
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Dose-Response Relationship, Drug
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Drug Administration Schedule
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Fractures, Stress / prevention & control
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Humans
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Risk Factors
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Vitamin D / administration & dosage*
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Vitamin D / analogs & derivatives
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Vitamin D / blood
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Vitamin D Deficiency / blood
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Vitamin D Deficiency / drug therapy*
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Vitamin D Deficiency / epidemiology
Substances
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Vitamin D
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25-hydroxyvitamin D