Risk of Operative Mortality in Surgery for Coronary Heart Disease (A Multiple Regression Analysis of Perioperative Hemodynamic and Electrocardiographic Data) - Olthof, H; van Capelle, F J L; Bovill, J; Koolen, J J; Moulijn, A C; Lie, K l; Meijne, N G (The Thoracic and Cardiovascular Surgeon, 1983)