1. 1. Jaffe N. Bone Tumors in Children. Littleton Mass: PSG Publishing Co Ine; 1979.
2. 2. Schajowicz F. Tumors and Tumorlike Lesions of Bone: Pathology Radiology and Treatment. 2nd ed. New York NY: Springer-Verlag; 1994.
3. 3. Dahlin DC. Bone Tumors. 3rd ed. Springfield 111: Charles C. Thomas Co; 1978.
4. 4. Carnesale PG. Benign tumors of bone. In: Crenshaw AH ed. Campbell's Operative Orthopaedics. 8th ed. St Louis Mo: Mosby Year Book Ine; 1983:244-245.
5. 5. Tachdjian MO. Pediatric Orthopedics. Vol 1. Philadelphia Pa: WB Saunders Co; 1972.