Purely intramedullary spinal cord primitive neuroectodermal tumor: Case report and review of the literature

1. Otero-Rodríguez, A.
2. Hinojosa, J.
3. Esparza, J.
4. Muñoz, M.J.
5. Iglesias, S.
6. Rodríguez-Gil, Y.
7. Ricoy, J.R.