RadiotherapyRadiotherapy DosageRadiotherapy, AdjuvantRadiation InjuriesRadiotherapy, ConformalChemotherapy, AdjuvantRadiation DosageAdjuvants, ImmunologicRadiation, IonizingCombined Modality TherapyDose-Response Relationship, RadiationRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedRadiation ToleranceRadiotherapy, High-EnergyRadiation OncologyDose FractionationRadiationFreund's AdjuvantRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedRadiation ProtectionTreatment OutcomeRadiation MonitoringNeoplasm Recurrence, LocalNeoplasm StagingBrachytherapyRadiation PneumonitisAntineoplastic Combined Chemotherapy ProtocolsDisease-Free SurvivalNeoplasms, Radiation-InducedRadiosurgeryBreast NeoplasmsRadiation-Sensitizing AgentsRadiometryHead and Neck NeoplasmsSurvival AnalysisSurvival RateBrain NeoplasmsRetrospective StudiesChemoradiotherapyRadiation Injuries, ExperimentalAdjuvants, PharmaceuticPrognosisFollow-Up StudiesCarcinoma, Squamous CellFluorouracilGamma RaysParticle AcceleratorsNasopharyngeal NeoplasmsCisplatinRectal NeoplasmsRadiation-Protective AgentsOrgans at RiskRadiodermatitisTime FactorsCosmic RadiationCranial IrradiationAntineoplastic AgentsCobalt RadioisotopesLung NeoplasmsMastectomy, SegmentalTomography, X-Ray ComputedNeoplasmsNeoadjuvant TherapyAdenocarcinomaBackground RadiationPelvic NeoplasmsNeoplasms, Second PrimaryDacarbazineLymphatic MetastasisHodgkin DiseaseVincristineRadiobiologyLaryngeal NeoplasmsCyclophosphamideMastectomyProstatic NeoplasmsRadiation EffectsUltraviolet RaysAntineoplastic Agents, HormonalDoxorubicinKaplan-Meier EstimateGlioblastomaProcarbazineCarcinoma, Non-Small-Cell LungOrgan Sparing TreatmentsXerostomiaLymphatic IrradiationHeavy Ion RadiotherapyCarcinomaRadioisotope TeletherapyProspective StudiesX-RaysSpinal NeoplasmsAntineoplastic Agents, AlkylatingDrug Administration ScheduleSarcomaGliomaPalliative Care