2001;234:464 72. 955. Kim YH, Park DW, Kim WJ, et al. Validation of SYNTAX (Synergy between PCI with Taxus and Cardiac Surgery) score for prediction of outcomes after unprotected left main coronary revascularization. J Am Coll Cardiol Intv. 2010;3:612 23. 956. Shahian DM, O Brien SM, Filardo G, et al. The Society of Thoracic Surgeons 2008 cardiac surgery risk models: part coronary artery bypass grafting surgery. Ann Thorac Surg. 2009;88:S2 22. 957. Shahian DM, O Brien SM, Normand SL, et al. Association of hospital coronary artery bypass volume with processes of care, mortality, mor- bidity, and the Society of Thoracic Surgeons composite quality score. J Thorac Cardiovasc Surg. 2010;139:273 82. 958. Buszman PE, Kiesz SR, Bochenek A, et al. Acute and late outcomes of unprotected left main stenting in comparison with surgical revascular- ization. J Am Coll Cardiol. 2008;51:538 45. 959. Dzavik V, Ghali WA, Norris C, et al. Long-term survival in 11 661 patients with multivessel coronary artery disease in the era of stenting: a report from the Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease (APPROACH) Investigators. Am Heart J. 2001;142:119 26. 960. Takaro T, Hultgren HN, Lipton MJ, et al. The VA cooperative ran- domized study of surgery for coronary arterial occlusive disease II. Subgroup with significant left main lesions. Circulation. 1976;54: III107 III117. 961. Takaro T, Peduzzi P, Detre KM, et al. Survival in subgroups of patients with left main coronary artery disease. Veterans Administration Coop- erative Study of Surgery for Coronary Arterial Occlusive Disease. Circulation. 1982;66:14 22. 962. Taylor HA, Deumite NJ, Chaitman BR, et al. Asymptomatic left main coronary artery disease in the Coronary Artery Surgery Study (CASS) registry. Circulation. 1989;79:1171 9. 963. Capodanno D, Caggegi A, Miano M, et al. 