Figarella-Branger: Infratentorial ependymoma of childhood. Correlation between histological features, immunohistochemical phenotype, silver nucleolar organizer region staining values and post operative survival in 16 cases. Acta Neuropath, 82: 208–216, 1991.
KleihuesPBurgerPCScheithauerBW: Histological typing of tumors of tyhe nervous central system. WHO Blue Book, 2nd Ed.Springer Verlag, Heidelberg1993.
4.
MorkSJLokenAC: Ependymoma: A follow up study of 101 cases. Cancer, 40: 907–915, 1977.
5.
MorkSJRubinsteinLJ: Ependymoblastoma. A reappraisal of rare embryonal tumor. Cancer, 55: 1536–1542, 1985.
6.
NagashimaT: The proliferative potential of human ependymomas measured by in situ bromodeoxyuridine labeling. Cancer, 61: 2433–2438, 1988.
7.
NazarGB: Infratentorial ependymomas in childhood: Prognostic factors and treatment. J Neurosurg, 72: 408–417, 1990.
8.
Palma: Supratentorial ependymomas of the first two decades of life. Long-term follow up of 20 cases (including two subependymomas). Neurosurgery, 32: 169–175, 1993.
9.
RawlingsCEGiangasperoF: Ependymomas: A clinico-pathologic study. Surg Neurol, 29: 271–281, 1988.
10.
RossGWRubinsteinLJ: Lack of histopathological correlation of malignant ependymomas with postoperative survival. J Neurosurg, 70: 31–36, 1989.
11.
ScheithauerBW: Symptomatic subependymoma: Report of 21 cases with review of the literature. J Neurosurg, 49: 689–696, 1978.
12.
SchifferD: Ependymoma: Internal correlations among pathological signs: The anaplastic variant. Neurosurgery, 29: 206–210, 1991.