Radiation InjuriesRadiation DosageRadiotherapyRadiotherapy DosageRadiation, IonizingDose-Response Relationship, RadiationRadiotherapy, ConformalCombined Modality TherapyRadiotherapy, Intensity-ModulatedRadiation ToleranceRadiation OncologyDose FractionationRadiotherapy Planning, Computer-AssistedRadiotherapy, AdjuvantRadiationBrachytherapyRadiation ProtectionRadiation PneumonitisRadiosurgeryRadiation MonitoringRadiotherapy, Computer-AssistedRadiometryCranial IrradiationTreatment OutcomeRadiotherapy, Image-GuidedNeoplasm Recurrence, LocalRadiation-Sensitizing AgentsNeoplasms, Radiation-InducedParticle AcceleratorsBrain NeoplasmsHead and Neck NeoplasmsRadiation Injuries, ExperimentalRadiotherapy, High-EnergyOrgans at RiskNeoplasm StagingRadiodermatitisGamma RaysProstatic NeoplasmsRetrospective StudiesChemoradiotherapyRadiation-Protective AgentsCosmic RadiationAntineoplastic Combined Chemotherapy ProtocolsSurvival AnalysisDisease-Free SurvivalCarcinoma, Squamous CellMastectomy, SegmentalSurvival RateFollow-Up StudiesTomography, X-Ray ComputedChemotherapy, AdjuvantCobalt RadioisotopesBreast NeoplasmsNeoplasmsActuarial AnalysisFour-Dimensional Computed TomographyBackground RadiationTime FactorsAdenocarcinomaLymphatic IrradiationPrognosisTumor BurdenRadiobiologyBrain Stem NeoplasmsLung NeoplasmsCisplatinRectal NeoplasmsGlioblastomaHodgkin DiseaseRadiotherapy Setup ErrorsCerebellar NeoplasmsNeoplasms, Second PrimaryUltraviolet RaysDacarbazineRadiation EffectsAntineoplastic AgentsSarcomaMastectomyPelvic NeoplasmsGlottisProstate-Specific AntigenFluorouracilX-RaysNasopharyngeal NeoplasmsAndrogen AntagonistsProton TherapyPhantoms, ImagingRelative Biological EffectivenessLinear Energy TransferGliomaMechlorethamineCarcinoma, Non-Small-Cell LungLaryngeal NeoplasmsIridium RadioisotopesOsteoradionecrosisKarnofsky Performance StatusSEER ProgramCone-Beam Computed TomographyPhotonsProstatectomy