(Q24815588)
Statements
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Mortality in GOLD stages of COPD and its dependence on symptoms of chronic bronchitis (English)
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Marie Ekberg-Aronsson
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Kerstin Pehrsson
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Jan-Ake Nilsson
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Peter M Nilsson
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Claes-Göran Löfdahl
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25 August 2005
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Identifiers
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