1. Changing concepts in management of primary obstructive megaureter;Keating;J Urol,1989
2. Ureteral ectopy in females;Greene;Clin Obstet Gynecol,1967
3. Ureteral duplication anomalies: ectopic ureters and ureteral anomalies;Keating,2002
4. Single-system ectopic ureter: a 15-year review;Chowdhary;Pediatr Surg Int,2001
5. Bladder and urethra;Parrott,1994