1Calafiore A, Vitolla G, Mazzei V, et al. The LAST operation: technique and results before and after the stabilization era. Ann Thorac Surg, 1998,66:998.
2Rizzo DF, Boyd WD, Novick R J, et al. Safety and costeffectivness of MIDCAB in high - risk coronary atery by pass grafting patients.Ann Thorac Surg, 1998,66 : 1002.
