1. Congenital short urethra without hypospadia;Huffstadt;Arch. Chir. Neerl.,1963
2. Précis Clinique et Opératoire de Chirurgie Infantile;Ombrédanne,1932
3. Genital Abnormalities, Hermaphroditism and Related Adrenal Diseases;Young,1937
4. Deformities of male urethra;McIndoe;Brit. J. Plast. Surg.,1948
5. Hypospadism without hypospadia and short urethra;Bergerhof;Chirurg,1962