Preventive trials and tribulations.
D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000401:mortality / Q000517:prevention & control* / Q000601:surgery; D004812:Epidemiologic Methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000401:mortality; D011183:Postoperative Complications / Q000401:mortality; D012306:Risk