(Q47933537)
Statements
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Paradoxical results in the study of risk factors of chronic obstructive pulmonary disease (COPD) re-admission. (English)
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Judith Garcia-Aymerich
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Ramon M Marrades
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Eduard Monsó
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Esther Barreiro
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Eva Farrero
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Josep M Antó
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EFRAM Investigators
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1 September 2004
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98
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9
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851-857
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Identifiers
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