No abstract available
MeSH terms
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Adrenal Cortex Hormones / therapeutic use
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Animals
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Animals, Domestic
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Anti-Asthmatic Agents / therapeutic use
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Asthma / drug therapy
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Asthma / epidemiology*
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Asthma / etiology
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Asthma / prevention & control
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Child
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Child Day Care Centers
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Child, Preschool
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Cohort Studies
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Cromolyn Sodium / therapeutic use
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Female
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Hospitalization / statistics & numerical data*
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Humans
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Infant
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Male
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Recurrence
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Risk Factors
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Tobacco Smoke Pollution
Substances
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Adrenal Cortex Hormones
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Anti-Asthmatic Agents
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Tobacco Smoke Pollution
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Cromolyn Sodium