1. Congenital Valvular Obstruction of the Urethra
2. Id. (1934), In Thursfield H., Paterson D. “Diseases of Children”. 3rd, Ed. London, p. 640.
3. Braasch W. F. (1927), “Urography”. Philadelphia and London, p. 439.
4. Bradford J. R. (1901), In Gibson G. A. “Textbook of Medicine”. Edinburgh and London, 2, 307.
5. Congenital Bilateral Uretero-Vesical Junction Stricture in Infants and Children