1. Ependymomas of the third ventricle;Oppenheim;Neurosurgery,1994
2. Supratentorial ependymomas. Neuroimaging and clinicopathological correlation;Centeno;J Neurosurg,1986
3. ENCR. European Network of Cancer Registries. Eurocim version 4.0. European incidence database V2.2 (1999). Lyon; 2001.
4. Parkin DM, Kramarova E, Draper JG, et al. International incidence of childhood cancer, vol. II. Lyon: IARC Scientific Pub. No. 144; 1998.
5. Berrino F, Capocaccia R, Coleman MP, et al. Survival of cancer patients in Europe: the EUROCARE-3 study. Ann Oncol 2003; 14 Suppl 5.