No abstract available
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Air Pollutants / adverse effects*
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Air Pollution / adverse effects*
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China / epidemiology
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Cold Temperature / adverse effects*
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Female
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Hot Temperature / adverse effects*
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Humans
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Male
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Middle Aged
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Pulmonary Disease, Chronic Obstructive / chemically induced
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Pulmonary Disease, Chronic Obstructive / mortality*
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Young Adult