No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Heart Failure / epidemiology
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Humans
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Medicare / statistics & numerical data
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Patient Readmission / statistics & numerical data*
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Pneumonia / epidemiology
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Pulmonary Disease, Chronic Obstructive / epidemiology
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Retrospective Studies
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Risk Assessment
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Seasons*
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United States / epidemiology