1. Albes GM, Schistek R, Baier R, Unger A, Hangler H, Unger F (1991) Early and late results following coronary artery bypass surgery beyond the age of 75 years. Thorac Cardiovasc Surg 39: 289–293
2. Beretta L, Lemma M, Vanelli P, Paolino C, Botta M, Fundaro P, Santoli C (1993) Inferior epigastric artery: An alternative graft for myocardial revascularization. Cor Europaeum 2: 54–58
3. Bittner V (1994) Primary and secondary prevention of ischemic heart disease. Curr Op Cardiol 9: 417–427
4. Cataldo G, Braga M, Pirotta N, Lavezzari M, Rovelli F, Marubini E (1993) Factors influencing 1-year patency of coronary artery saphenous vein grafts. Circulation 88 II: 93–98
5. D’Ambra M (1993) Is intraoperative echocardiography a useful monitor in the operating room? Ann Thorac Surg 56: 83–86