Arman Khozhayev, Nurkuisa Iles, Yersultan Ordabek, Alissultan Alayev, Nursultan Nurmakhashev, Baglankozha Seitkarim, Olzhas Zhanzakov, Orynbassar Dautakyn, and Merey Tassybayev. “MALIGNANT BONE TUMORS: A MODERN VIEW OF THE PROBLEM”. Research Retrieval and Academic Letters, no. 9 (May 19, 2025). Accessed July 21, 2026. https://ojs.publisher.agency/index.php/RRAL/article/view/6171.