Spheroids, CellularTumor Cells, CulturedCell Culture TechniquesCell SurvivalFurylfuramideCell AggregationNeuroaxonal DystrophiesLiver, ArtificialGliomaActiniumMisonidazoleCell Line, TumorCell DivisionAlpha ParticlesLomustineCytological TechniquesBiodegradable PlasticsLeukoencephalopathiesCoculture TechniquesNeoplastic Stem CellsMammary Neoplasms, ExperimentalOrganoidsCell ProliferationNeoplasms, ExperimentalAntineoplastic AgentsNitroimidazolesProton IonophoresCells, CulturedPeplomycinColonic NeoplasmsNeoplasm TransplantationTransplantation, HeterologousBrain NeoplasmsVolvoxMechlorethamineCell SeparationCell AdhesionDose-Response Relationship, RadiationModels, BiologicalCell MovementHepatocytesHematoporphyrin PhotoradiationDiffusionCystadenocarcinomaEnzyme Multiplied Immunoassay TechniqueCellular MicroenvironmentTumor Stem Cell AssayNeoplasm InvasivenessAstatineCell CommunicationDoxorubicinRadiation ToleranceDrug Resistance, NeoplasmTissue EngineeringCell HypoxiaGlioblastomaOxygenMitochondrial DegradationCricetulusMice, SCIDMice, NudeTumor MicroenvironmentPolyhydroxyethyl MethacrylateMelanomaRadiation-Sensitizing AgentsFlow CytometryFibroblastsCell LinePhotochemotherapyOvarian NeoplasmsMicroscopy, ConfocalIodine RadioisotopesCadherinsTime FactorsNecrosisDrug Screening Assays, Antitumor