1. The perineal testes;Coplan;South Med J,1957
2. Testes and scrotum;Hadziselimovic,1987
3. Development and transition of the testis, normal and abnormal;Lockwood;Br Med J,1887
4. Embryology of testicular descent and maldescent;Backhouse;Urol Clin North Am,1982
5. The gubernaculum testis hunteri: testicular descent and maldescent;Backhouse;Ann R Coll Surg Engl,1954