1. Radiologic Examination of the Urinary Tract;Pollack,1971
2. Techniques and applications of urography;Witten,1977
3. Bush, W. H. and Gibbons, R. P.: A case for the IVP: risks and indications. AUA Update Series, vol. 5, lesson 1, 1986.
4. Imaging of the urinary tract;Palubinskas,1984
5. Evaluation of 12 colon-cleansing regimens with singlecontrast barium enema;Present;Amer. J. Roentgen.,1982