Libório, R, R F Pais, G B Soares, A Rocha, F Ferreira, T Garcia, and F F Pais. 2001. “Medullary and Intracranial Metastases of Myxopapillary Ependymoma”. Acta Médica Portuguesa 14 (1). Lisbon, Portugal:133-8. https://doi.org/10.20344/amp.1826.