postoperative echocardiography: diastolic residual peak gradient of prosthetic mitral valve
postoperative echocardiography: diastolic residual peak gradient of prosthetic mitral valve
postoperative echocardiography: diastolic residual peak gradient of prosthetic mitral valve (procedure)
postoperative echocardiography: diastolic residual peak gradient of prosthetic mitral valve (procedure)