1. Exeretion urography;Baddeley,1984
2. Urography, pyelography, cystography and urethrography;Gaylord,1989
3. Urinary tract;Bryan,1981
4. Bowel preparation before intravenous urography: is it necessary?;George;Br J Radiol,1993
5. Laxatives as colonic preparation for barium enema: the patient's viewpoint;Coombs;Radiography,1983