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Figure 5 Percent of patients free from cardiac death for all EAST patients (Panel A) and for patients with three-vessel coronary disease (Panel B). The number of patients at risk and the estimated probability of freedom from cardiac death at 3, 5, 7 and 8 years are shown below the figure. CABG = coronary artery bypass grafting; PTCA = percutaneous transluminal coronary angioplasty.