@misc{indiciaef59ab625f1c2, title = {Randomized trials in coronary bypass surgery.}, author = {T Killip and T J Ryan}, year = {1985}, doi = {10.1161/01.cir.71.3.418}, url = {https://pubmed.ncbi.nlm.nih.gov/3882263/}, note = {Source identifier: 3882263} }