Samanci, Y., and S. E. Celik. “Extramedullary Myxopapillary Ependymoma of the Filum Terminale Associated With Syringomyelia: A Case Report”. Romanian Neurosurgery, vol. 20, no. 4, Dec. 2013, pp. 393-6, https://journals.lapub.co.uk/index.php/roneurosurgery/article/view/718.