2Porstmann W, Wierny L, Warneke H, et al. Catherter closure of patent ductusarteriosus: 62 cases treated without thoracotomy. Radiol Clin N Am, 1971,9:203-204.
3Cambier PA, Kirby WC, Walsh PK, et al. Percutaneous closure of the small (＜2.5mm)patent ductus arteriosus using coil embolization. Am J Cardiol,1992,69:85-88.
4Masura J, Walsh PK, Wortham DC, et al. Catherter closure of moderate to large-sizedpatent ductus arterious using the New Amplatzer Puct Occluder: Immediate and short-termresults. JACC,1998,31:878-880.
51， Porstmann W, Wierng L, Warnke H, etal. Closure of the persistent duc tus arteriosus. Without thoracotomy. Ger Med Mon,1967,12:259.
62， RashKind WJ, Cusco CC. Transcatheter closure of a patent ductus arteriosus: successful-use in a 3.5kg infant. Pediatr ardiol,1979,1:3.
73，Cambier PA, Kirby WC, Wortham DC, et al. Percutaneous closure of small (<2.5 m m)patent ductus arteriosus using coil embolization. Am J Cardiol, 1992,69:815.
84，Daniels CJ, Cassidy SC, Teske DW, et al. Reopening after successful coil occl usionfor patent ductus arteriosus. JACC,1998,31:444.
95， Krichenko A, Benson LN, Burrows P, et al. Angiographic classification of the isolated, persistently patent ductus arteriosus and implications for percutaneous catheterocclusion. Am J Cardiol, 1989,1:877.
