No abstract available
MeSH terms
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Aged
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Carbon Dioxide / blood
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Female
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Humans
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Lung Diseases, Obstructive / blood
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Lung Diseases, Obstructive / physiopathology
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Lung Diseases, Obstructive / therapy*
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Male
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Middle Aged
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Oxygen / blood
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Positive-Pressure Respiration
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Respiration, Artificial*
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Respiratory Muscles / physiopathology*
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Work of Breathing