1. Malignant testicular tumors in non-twin brothers;Adeeb;Urology,1975
2. Testicular neoplasms in father and son;Arcadi;J. Urol.,1973
3. Similar tumors of testis occurring in identical twins;Champlin;JAMA,1930
4. Classification and frequency of testicular tumours;Collins;Brit. J. Urol.,1964
5. Über Leistenhodencarcinoma bei Zwillingen, Langenbecks;Domrich;Arch. Klin. Chir.,1940