[Significance of electrocardiography in the clinical study of coronary sclerosis].
D000787:Angina Pectoris / Q000175:diagnosis; D001161:Arteriosclerosis / Q000175:diagnosis; D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D007511:Ischemia / Q000175:diagnosis