No abstract available
MeSH terms
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Bone Diseases, Metabolic / blood
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Bone Diseases, Metabolic / drug therapy*
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Bone Diseases, Metabolic / metabolism
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Humans
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Infant, Newborn
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Infant, Premature, Diseases / blood
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Infant, Premature, Diseases / drug therapy*
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Infant, Premature, Diseases / metabolism
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Random Allocation
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Vitamin D / administration & dosage
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Vitamin D / metabolism
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Vitamin D / therapeutic use*