title: Normal electrocardiogram in severe angina pectoris requiring coronary venous bypass graft.
mesh_terms: D000328:Adult; D000787:Angina Pectoris / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D017023:Coronary Angiography; D001026:Coronary Artery Bypass; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged