No abstract available
MeSH terms
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Acute Disease
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Asthma / diagnosis*
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Asthma / therapy*
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Asthma, Exercise-Induced / drug therapy
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Asthma, Exercise-Induced / physiopathology
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Bronchodilator Agents / therapeutic use
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Child, Preschool
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Chronic Disease
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Environment
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Humans
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Immunotherapy
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Methotrexate / therapeutic use
Substances
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Bronchodilator Agents
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Methotrexate