No abstract available
MeSH terms
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Cross Infection / diagnosis
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Cross Infection / epidemiology*
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Cross Infection / etiology
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Diagnostic Errors
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Forms and Records Control / standards
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Humans
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Medical Records / standards
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Philadelphia / epidemiology
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Pneumonia, Aspiration / diagnosis
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Pneumonia, Aspiration / epidemiology*
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Quality Indicators, Health Care / standards*