No abstract available
MeSH terms
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Aged
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Female
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Hospital Mortality / trends
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Hospitalization / trends*
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Humans
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Male
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Patient Acceptance of Health Care / statistics & numerical data*
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Prevalence
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Pulmonary Disease, Chronic Obstructive / epidemiology*
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Retrospective Studies
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Sex Distribution
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Sex Factors
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Survival Rate / trends
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United States / epidemiology