For citations:
Fedorova A.V., Sushentsov E.A., Agaev D.K., Kochergina N.V., Bludov A.B., Shchipakhina Y.A., Batyrova G.S. Diagnostic and treatment of secondary chondrosarcoma of the femur with multiple recurrences. Case report. Bone and soft tissue sarcomas, tumors of the skin. 2022;14(2):52‑60. (In Russ.) https://doi.org/10.17650/2782-3687-2022-14-2-52-60