[4-year follow-up of the resting electrocardiogram in population: an application of Minnesota ECG code].
D000328:Adult; D002681:China; D003327:Coronary Disease / Q000453:epidemiology*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012306:Risk