CookeG. M., BartuczJ. P.: Spontaneous extravasation of contrast medium during intravenous urography. Clin. Radiol., 25; 87 (1974).
4.
HaleJ. E., WhitehouseG. H.: Spontaneous extravasation of urine during emergency intravenous pyelography. Brit. J. Surg., 57; 302 (1970).
5.
HarrowB. R., SloaneJ. A.: Pyelorenal extravasation during excretory urography. J. Urol., 85; 995 (1961).
6.
HinmanF.jr.: Peripelvic extravasation during intravenous urography evidenced for additional route for backflow after ureteral obstruction. J. Urol.; 85; 385 (1961).
7.
HughesJ., De HartH.S., CoppridgeA. J., RobertsL. C.: Ureteral stone: diagnosis in emergency room patients. Urology, 10; 425 (1977).
8.
LindbomA.: Fornix backflow in excretion urography, its significance in differential diagnosis of tuberculosis of kidney. Acta Radiol., 24; 411 (1943).