Randomized trials in coronary bypass surgery.
D001807:Blood Vessel Prosthesis; D002986:Clinical Trials as Topic; D001026:Coronary Artery Bypass / Q000401:mortality*; D003327:Coronary Disease / Q000401:mortality / Q000628:therapy; D005500:Follow-Up Studies; D006801:Humans; D011379:Prognosis; D011897:Random Allocation; D012306:Risk; D013673:Technology Assessment, Biomedical; D013997:Time Factors