For citations:
Zagidullina A.A., Kharbediya V.Kh., Nisichenko D.V., Dzampaev A.Z., Mikhailova S.N. Experience in the treatment of primary malignant tumors (retinoblastoma and osteosarcoma): analysis of the clinical case. Bone and soft tissue sarcomas, tumors of the skin. 2021;13(2):36-43. (In Russ.) https://doi.org/10.17650/2070-9781-2021-13-2-36-43