OligodendrogliomaBrain NeoplasmsChromosomes, Human, Pair 19Chromosomes, Human, Pair 1AstrocytomaLomustineGliomaGene Expression ProfilingGene ExpressionProcarbazineSupratentorial NeoplasmsGene Expression RegulationGangliogliomaDacarbazineOncogene Proteins v-erbBSpinal Cord NeoplasmsIsocitrate DehydrogenaseCerebral Ventricle NeoplasmsAntineoplastic Agents, AlkylatingLoss of HeterozygosityOligonucleotide Array Sequence AnalysisVincristineIn Situ Hybridization, FluorescenceGlioblastomaEpendymomaChromosomes, Human, Pair 10Magnetic Resonance ImagingChromosome DeletionRNA, MessengerFatal OutcomeNeoplasm GradingGlial Fibrillary Acidic ProteinImmunohistochemistryGene Expression Regulation, Developmental