1. Acute urinary retention in children;Gatti JM;Urology,2001
2. Fibroepithelial polyp of the urethra;Aita GA;Int Braz J Urol,2005
3. Urethral polyp in a 1 month old child;Beluffi;Pediatr Radiol,2005
4. Fibroepithelial polyp of renal pelvis: Literature review and case report;Murshidi MS;Dirasat,1985
5. Calculous disease and its relationship to fibroepithelial polyps of the renal pelvis and ureter;Murshidi MS;Acta Urol Belg,1988