9Lund O, Johansen G, Allermand H, et al. Intra - aortic balloon pum- ping in the treatment of low cardiac output following open heart surger- y. Immediate results and long- term prognosis[ J]. J Thorae Cardio- vasc Surg, 1988, 36(6) :332 -340.
10Baskett R J, Ghali WA, Maitland A, et al. The intra- aortic balloon pump in cardiac surgery[J]. Ann Thorac Surg, 2002, 74(4):126 -128.
