1[1]Talley JD ,OhmanEM ,George BS ,et al.Cost implications of aort ic count erpulsat ion in acute myocardial in farct ion; results from randomizeda clinical trial .J ,Am Coil Cardiol, 1995,25:87A.
2[2]Moulopoulos SD. The purpose of intra-aortic ballon pumping [better] .JTHorac Cardiorasc Surg, 1976,72:817.
3[3]Cooper GN. Preoperative intra-aortic ballon support in Surgery for Left main Coronary stenonsis. Am Surg, 1977,185:242.
4[4]Bolcoki H. Clinical and hemodynamic criteria for use of the intra-aortic ballon pump in patients repuiring Cardiac Surgery.J Thorac Cardiovasc Surg, 1976,72:756.
5[5]Downing TP. Use of the intra-aortic ballon pump after valve replacment .J Thorae Cardiovasc Surg, 1986,92:210.