“Malignant Transformation of Giant Cell Tumor of Bone (GCTB). Clinical Case”. Voprosy onkologii 70, no. 6 (January 22, 2025): 1209–1214. Accessed October 14, 2026. https://voprosyonkologii.ru/index.php/journal/article/view/6-24-Malignant-Transformation.