No abstract available
MeSH terms
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Bacterial Infections / complications*
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Disease Progression
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Forced Expiratory Volume
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Health Status
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Humans
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Inflammation
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Lung Diseases / complications*
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Pulmonary Disease, Chronic Obstructive / etiology
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Pulmonary Disease, Chronic Obstructive / microbiology*
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Pulmonary Disease, Chronic Obstructive / mortality
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Risk Factors
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Smoking / adverse effects
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Virus Diseases / complications*