No abstract available
Keywords:
Air pollutants; First aid; NO(2); SO(2); Time-series analysis.
MeSH terms
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Air Pollutants / adverse effects
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Air Pollutants / analysis
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Air Pollution / adverse effects*
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Asthma / epidemiology
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Asthma / etiology
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China / epidemiology
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Emergency Service, Hospital / statistics & numerical data*
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Humans
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Nitrogen Dioxide / adverse effects*
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Nitrogen Dioxide / analysis
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Sulfur Dioxide / adverse effects*
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Sulfur Dioxide / analysis
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Time
Substances
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Air Pollutants
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Sulfur Dioxide
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Nitrogen Dioxide