No abstract available
Publication types
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Clinical Trial
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Controlled Clinical Trial
MeSH terms
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Adolescent
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Adult
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Aged
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Ascorbic Acid / therapeutic use*
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Child
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Child, Preschool
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Clinical Trials as Topic
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Common Cold / drug therapy*
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Female
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Humans
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Infant
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Infant, Newborn
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Male
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Middle Aged
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Placebos