3Grignon A,Filion R,Filiatrault D,et al.Urinary tract dilatation in utero:Classification and clinical applications[J].Radiology,1986,160:645-648
4Chhabi RP,Tuson JRD,Lindsell DRM,et al.The Role of Micturating cystoureth-rography in Antenatally detected mild hydronephrosis[J].Pediat Radiol,1998,28:152
5Rickwood AMK,Godiwalla SY.The natural history of pelvi-ureteric junction obstruction in children presenting clinically with the complaint[J].Br J Urol,1997,80:793
6Borsellino A,Zaccara A,Nahom A,et al.False-positive rate in prenatal diagnosis of surgical anomalies[J].J Pediatr.Surg,2006,41 (4):826-829
7Han SW,Lee SE,Kim JH,et al.Does delayed operation for pediatric ureteropelvic junction obstruction cause histopathological changes?[J].J Urol,1998,160(3 Pt 2):984-988