No abstract available
Publication types
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Clinical Trial
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Randomized Controlled Trial
MeSH terms
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Bronchitis / physiopathology*
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Carbon Dioxide / blood
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Dyspnea / physiopathology*
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Humans
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Hydrogen-Ion Concentration
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Middle Aged
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Oxygen / blood
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Oxygen Consumption
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Pulmonary Emphysema / physiopathology*
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Respiration*
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Respiratory Function Tests