Aortocoronary bypass graft for preinfarction angina.
D000368:Aged; D000787:Angina Pectoris / Q000601:surgery*; D002932:Cineangiography; D001026:Coronary Artery Bypass; D003331:Coronary Vessels / Q000601:surgery*; D004562:Electrocardiography; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000517:prevention & control*; D012501:Saphenous Vein / Q000601:surgery; D014182:Transplantation, Autologous; D014680:Veins / Q000637:transplantation*