1. Retrocaval ureter;Persky,1986
2. Circumcaval ureter: a report of 4 cases in children with a review of the literature and a new classification;Kenawi;Br J Urol,1976
3. Retrocaval ureter: report of 8 cases and the surgical management;Carrion;J Urol,1979
4. Double inferior vena cava with right retrocaval ureter: a case report;Arikuni;Kaibogaku Zasshi,1984
5. Retrocaval ureter: 4 cases;Shown;J Urol,1971