Preoperative aortography in hydronephrosis.
D000328:Adult; D001012:Aorta, Abdominal; D001027:Aortography; D002648:Child; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging* / Q000601:surgery; D007668:Kidney / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging; D014567:Urography