Incidence and Clinical Course of Thrombus Formation on Atrial Septal Defect and Patent Foramen Ovale Closure Devices in 1,000 Consecutive Patients
J Am Coll Cardiol 43:302-309, Krumsdorf,U.,et al, 2004
Cerebral Infarction and Ventricular Septal Defect
Stroke 20:957-958, Shuiab,A., 1989