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2. Malignant cartilage tumors;Dorfman,1998
3. Dahlińs Bone Tumors. Chondrosarcoma;Unni,1996
4. Prognostic factors in chondrosarcoma of bone: a clinicopathologic analysis with emphasis in histologic grading;Evans;Cancer,1977
5. Cartilage forming tumors;Schajovicz,1994