British Regional Heart Study: the electrocardiogram and risk of myocardial infarction on follow-up.
D003430:Cross-Sectional Studies; D004562:Electrocardiography; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D011446:Prospective Studies; D012307:Risk Factors; D013997:Time Factors; D006113:United Kingdom