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Prognosis following acute myocardial infarction in patients with ST‐T abnormalities on electrocardiograms obtained before myocardial infarction

Background: Many studies have examined the relationship between prognosis after myocardial infarction (MI) and electrocardiographic (ECG) findings at the time of or after the onset of MI. However, little work has been done concerning the association between ECG findings obtained before the onset of MI (pre‐MI) and the prognosis after MI.