1. Intravenous pyelography;Ackerman;J Am Anim Hosp Assoc,1974
2. Radiology of Urogenital Diseases in Dogs and Cats;Ackerman,1983
3. Prostatic reflux during positive contrast retrograde urethrography;Ackerman;Vet Radiol,1983
4. Pyelonephritis in the dog;Allen;Compend Contin Educ Pract Vet,1985
5. Feline kidney measurement;Barrett;Acta Radiol,1972