1. Synchronous rupture of bilateral ectopics;Appleby;Can Med Assoc J,1923
2. Una rara deformidad congenita del aparato genital;Hontan;Pediatr.Esp,1935
3. Principles and Practice of Urology;Hinman,1935
4. A case of prepenile scrotum;Huffman;J Urol,1951
5. Transposition of the penis and scrotum: case report;McIlvoy;J Urol,1955