Angioplasty versus bypass surgery.
D000368:Aged; D000787:Angina Pectoris / Q000628:therapy; D015906:Angioplasty, Balloon, Coronary; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male