1. Berdon, W. E., Wigger, H. J., Baker, D. H.: Fetal renal hamartoma ? a benign tumor to be distinguished from Wilms' tumor. Amer. J. Roentgenol.118, 18?27 (1973)
2. Bolande, R. P.: Benignity of neonatal tumors and concept of cancer repression in early life. Amer. J. Dis. Child.122, 12?14 (1971)
3. Bolande, R. P., Brough, A. J., Izant, R. J.: Congenital mesoblastic nephroma of infancy. Pediatrics40, 272?278 (1967)
4. Caffey, J.: Pediatric X-ray diagnosis, VI. Ed. Chicago: Year Book Medical Publishers 1972
5. Favara, B. B., Johnson, W., Ito, J.: Renal tumors in neonatal period. Cancer22, 845?855 (1968)