AstrocytomaBrain NeoplasmsGlioblastomaGliomaNimustineOligodendrogliomaSupratentorial NeoplasmsDacarbazineAntineoplastic Combined Chemotherapy ProtocolsAntineoplastic Agents, AlkylatingOptic Nerve NeoplasmsCombined Modality TherapyBrain Stem NeoplasmsChemotherapy, AdjuvantGliosarcomaNeoplasm Recurrence, LocalLomustineKarnofsky Performance StatusCarmustineSurvival AnalysisChromosomes, Human, Pair 10Antineoplastic AgentsTreatment OutcomeProcarbazinePrognosisSurvival RateMagnetic Resonance ImagingDisease ProgressionDrug Administration ScheduleTumor Markers, BiologicalHypothalamic NeoplasmsCisplatinImmunohistochemistryCyclophosphamideDoxorubicinTomography, X-Ray ComputedDisease-Free SurvivalNeoplasm StagingNeoadjuvant TherapyBreast Neoplasms