No abstract available
Publication types
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Letter
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Randomized Controlled Trial
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Research Support, N.I.H., Extramural
MeSH terms
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Asthma / immunology*
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Behavior Control
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Child
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Child, Preschool
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Cotinine / analysis*
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Environmental Exposure / adverse effects*
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Female
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Humans
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Male
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Saliva / chemistry*
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Smoking
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Tobacco Smoke Pollution / adverse effects*
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Urban Population
Substances
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Tobacco Smoke Pollution
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Cotinine