1. World health organization classification of tumors. Pathology and genetics of tumors of soft tissue and bone,2002
2. Lucas׳s pathology of tumors of the oral tissues;Cawson,1998
3. Bone/osteoid producing lesions in Book Frozen section library: bone;Hameed,2011
4. Borderline osteoblastic tumours: problems in the differential diagnosis of aggressive osteoblastoma and low-grade osteosarcoma;Dorfman;Semin Diagn Pathol,1984
5. Imaging of bone tumors and tumor-like lesions;Davies,2009