(Q39414333)
Statements
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Air pollution and emergency room admissions for chronic obstructive pulmonary disease: a 5-year study (English)
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Sunyer J
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Sáez M
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Murillo C
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Castellsague J
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Martínez F
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Antó JM
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1 April 1993
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137
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7
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701-705
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Identifiers
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