1. Primary retroperitoneal tumors;Braasch;Surg. Clin. N. Amer.,1967
2. Tumors of the retroperitoneum, mesentery, and peritoneum;Ackerman,1954
3. Primary retroperitoneal tumors: a report of 95 cases and review of the literature;Donnelly;Surg., Gynec. & Obst.,1946
4. Collective review; primary retroperitoneal tumors; a study of 120 cases;Pack;Surg., Gynec. & Obst.,1954
5. The continuing challenge of retroperitoneal sarcomas;Cody;Cancer,1981