No abstract available
MeSH terms
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Airway Obstruction / diagnosis*
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Airway Obstruction / etiology
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Airway Obstruction / physiopathology
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Diagnosis, Differential
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Forced Expiratory Volume*
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Humans
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Pulmonary Disease, Chronic Obstructive / complications
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Pulmonary Disease, Chronic Obstructive / diagnosis
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Pulmonary Disease, Chronic Obstructive / mortality
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Reproducibility of Results
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Survival Rate
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United States / epidemiology
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Vital Capacity*