(Q44668024)
Statements
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Prevalence of chronic obstructive pulmonary disease and risk factors in smokers and ex-smokers (English)
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Jaén Díaz JI
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de Castro Mesa C
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Gontán García-Salamanca MJ
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López de Castro F
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1 December 2003
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39
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12
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554-558
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Identifiers
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1 reference