Letter: Coronary artery surgery.
D000787:Angina Pectoris / Q000601:surgery; D001161:Arteriosclerosis / Q000401:mortality; D001026:Coronary Artery Bypass / Q000401:mortality; D003327:Coronary Disease / Q000401:mortality / Q000601:surgery*; D006801:Humans; D009203:Myocardial Infarction / Q000517:prevention & control