9Travis JA, Fuller SB, Ligush J Jr, et al. Diagnosis and treatment of paradoxical embolus. J Vasc Surg, 2001,34 : 860- 865.
10Nellessen U, Daniel WG, Matheis G, et al. Impending paradoxical embolism from atrial thrombuszcorrect diagnosis by transesophageal echocardiograpby and prevention by surgery. J Am Coil Cardiol, 1985,5 : 1002- 1004.