1. Young, R. H., Rosenberg, A. E.: Osteosarcoma of the urinary bladder.Cancer, 59, 174 (1987).
2. Van Oyen, P. M., Bergmans, G., Denys, H., Vergison, R.: Primary osteogenic sarcoma of the bladder.Acta Urol. Belg., 55, 380 (1987).
3. Lemontagne, A. E. Jr., O'Neill, D. G.: Primary osteosarcoma of the bladder: A case report and review of the literature.Conn. Med., 58, 327 (1994).
4. Phan, C. N., Wilkinson, M., Cohen, M. B., Dunn, S., Carroll, P.: Primary osteogenic sarcoma of the urinary bladder successfully treated with combination therapy.Urology, 44, 771 (1994).
5. Sordillo, P. P., Hajdu, S. I., Magill, G. B., Golbey, R. B.: Extraosseous osteogenic sarcoma: A review of 48 patients.Cancer, 51, 727 (1983).