No abstract available
MeSH terms
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Adolescent
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Child
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Child, Preschool
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Double-Blind Method
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Drug Hypersensitivity / epidemiology
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Drug Hypersensitivity / etiology*
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Female
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Follow-Up Studies
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Food Additives / administration & dosage
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Food Additives / adverse effects*
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Humans
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Male
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Recurrence