title: Ultrasonography in the diagnosis of renal obstruction.
authors: J A
authors: JA
authors: Webb
mesh_terms: D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging*; D007682:Kidney Pelvis / Q000000981:diagnostic imaging; D011247:Pregnancy; D011859:Radiography; D012680:Sensitivity and Specificity; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging*