No abstract available
MeSH terms
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Blood
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Blood Pressure*
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Bronchitis / physiopathology*
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Chronic Disease
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Esophagus
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Humans
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Hydrogen-Ion Concentration
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Male
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Manometry
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Middle Aged
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Oxygen / blood
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Physical Exertion
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Pulmonary Artery / physiopathology*
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Spirometry
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Thorax