Additional file 2.
Distribution of CNS Tumor Categories by Age from 1962 to 1989. I = Tumors of neuroepithelial tissue; II = Tumors of cranial and paraspinal nerves; III = Tumors of meninges; IV = Lymphomas and hematopoietic neoplasms; V = Germ cell tumors; VI = Tumors of the sellar region; VII = Metastatic tumors.
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Chen et al. BMC Clinical Pathology 2013 13:14 doi:10.1186/1472-6890-13-14