No abstract available
MeSH terms
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Aged
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Case-Control Studies
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Deglutition / physiology*
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Female
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Forced Expiratory Volume
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Humans
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Male
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Mass Screening / methods*
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Middle Aged
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Pulmonary Disease, Chronic Obstructive / diagnosis*
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Pulmonary Disease, Chronic Obstructive / physiopathology
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Pulmonary Medicine / methods
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Risk
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Time Factors