1Masura J, Walsh KP,Thanopoulous B, et al. Catheter closure of moderate to largeaized patent ductes arteriosus using the new Amplatzer duct oceluder:immediate and short term results. J Am Coil Cardiol, 1998,31: 878~ 882.
2Amin Z,Gux A,Berry JM ,et al. New device for closure of muscular ventricular septal defects in a canine model. Circulation, 1999,100 (3) :320~328.