Problems of an electrocardiogram reporting service.
D000328:Adult; D000368:Aged; D003327:Coronary Disease / Q000175:diagnosis*; D003954:Diagnostic Services; D004562:Electrocardiography / Q000145:classification; D005194:Family Practice; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014944:World Health Organization