[Individual differences in reading ECG].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003201:Computers; D004562:Electrocardiography / Q000592:standards*; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged