No abstract available
Publication types
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Clinical Trial
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Randomized Controlled Trial
MeSH terms
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Academies and Institutes
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Adolescent
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Adult
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Aged
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Asthma / drug therapy*
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Child
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Child, Preschool
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Cromolyn Sodium / standards*
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Cromolyn Sodium / therapeutic use
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Female
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Humans
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Male
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Middle Aged
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Placebos
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Radiography, Thoracic
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Respiratory Function Tests
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Surveys and Questionnaires
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United States