1. The Development of the Urogenital Organs;Felix,1912
2. Failure of urogenital union;Badenoch;Surg. Gynaec. Obstet.,1946
3. Failure of the urogenital union;Orr;J. Urol.,1948
4. Congenital Deformities of the Testis and Epididymis;Scorer,1971
5. Failure of fusion of the testis and epididymis;Dean;J. Urol.,1952