8Hansed D E,Sarris G E,Niczyporuk M A,et al.Physiologic role of the mitral apparatus in left venteicular regional mechanics,contraction synergy and global systolic performance[J].J Thorac Cardiovasc Surg,1989,97(5):521-523.
9Ruel M,Rubens F D,Masters R G,et al.Late incidence and predlitors of persistent or recurrent heart failure in patients with mitral proshetic valves[J].J Thorac Cediovasc Sur,2004,128(2):278-282.