Kis, E The role of ultrasound in the follow-up of postoperative changes after pyeloplasty. [electronic resource] - Pediatric radiology Apr 1998 - 247-9 p. digital Publication Type: Journal Article ISSN: 0301-0449 Standard No.: 10.1007/s002470050342 doi Subjects--Topical Terms: CatheterizationConstriction, Pathologic--diagnostic imagingFemaleFollow-Up StudiesHumansInfantInfant, NewbornKidney Pelvis--diagnostic imagingMaleUltrasonographyUreteral Obstruction--diagnostic imaging