No abstract available
MeSH terms
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Aged
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Chile
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Emergency Medical Services / statistics & numerical data
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Female
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Forms and Records Control / methods
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Hospitals, Public / statistics & numerical data*
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Hospitals, Urban / statistics & numerical data*
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Humans
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Male
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Medical Records / standards*
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Middle Aged
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Out-of-Hospital Cardiac Arrest / mortality*
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Retrospective Studies
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Survival Rate