title: Ultrasonography and renal obstruction.
authors.forename: S J
authors.initials: SJ
authors.lastname: Austin
mesh_terms: D006801:Humans; D007674:Kidney Diseases / Q000000981:diagnostic imaging*; D011704:Pyelonephritis / Q000000981:diagnostic imaging; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging; D014567:Urography