title: The value of imaging at the time of symptomatic presentation.
authors.affiliation: Division of Urology, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
authors.forename: Daniel P
authors.initials: DP
authors.lastname: Delaney
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Zderic
mesh_terms: D002648:Child; D006801:Humans; D007682:Kidney Pelvis / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography; D013997:Time Factors; D014517:Ureteral Obstruction / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery