“MESENCHYMAL CHONDROSARCOMA OF THE HEAD AND NECK. AN OVERVIEW OF THE FEATURES, PROGNOSTIC FACTORS AND DIRECTIONS OF THE SEARCH FOR TREATMENT STRATEGIES. CLINICAL CASE”. Voprosy onkologii 66, no. 4 (April 1, 2020): 420–424. Accessed October 14, 2026. https://voprosyonkologii.ru/index.php/journal/article/view/1104.