title: Editorial comment.
authors: Martin A
authors: MA
authors: Koyle
mesh_terms: D002648:Child; D006801:Humans; D007682:Kidney Pelvis / Q000601:surgery*; D013997:Time Factors; D014517:Ureteral Obstruction / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods