No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Coronary Angiography / trends*
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Electrocardiography / trends
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Female
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Humans
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Male
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Middle Aged
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Myocardial Infarction / diagnosis*
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Myocardial Infarction / diagnostic imaging*
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Myocardial Infarction / epidemiology
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Patient Admission / trends*
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Prospective Studies
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Time Factors