Supratentorial NeoplasmsGlioblastomaAstrocytomaBrain NeoplasmsCarbonic Anhydrase IIICell Line, TumorMice, NudeXenograft Model Antitumor AssaysTumor Cells, CulturedEpendymomaCell ProliferationGliomaCraniotomyNeuroectodermal Tumors, PrimitiveDacarbazineCerebellar DiseasesBrain Stem NeoplasmsMagnetic Resonance ImagingCerebellar Neoplasms