Leshko, M. M., E. I. Slynko, and T. A. Malysheva. “Surgical Treatment of Lumbar Chordoma”. Klinicheskaia khirurgiia 86, no. 3 (February 28, 2019): 56-59. Accessed January 22, 2022. https://hirurgiya.com.ua/index.php/journal/article/view/637.