RadiotherapyRadiotherapy, High-EnergyRadiotherapy DosageRadiation InjuriesRadiotherapy, ConformalFree RadicalsCombined Modality TherapyBrachytherapyRadiotherapy, AdjuvantHead and Neck NeoplasmsCarcinoma, Squamous CellNeoplasm StagingTreatment OutcomeUterine Cervical NeoplasmsLung NeoplasmsCisplatinCarcinoma, Non-Small-Cell LungHydroxyl RadicalRadiotherapy, Intensity-ModulatedSurvival RateRadiotherapy Planning, Computer-AssistedProstatic NeoplasmsRetrospective StudiesPrognosisDose FractionationFree Radical ScavengersRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedRadiation OncologyNeoplasm Recurrence, LocalDose-Response Relationship, RadiationRadiosurgeryChemoradiotherapyDisease-Free SurvivalAntineoplastic Combined Chemotherapy ProtocolsElectron Spin Resonance SpectroscopyNasopharyngeal NeoplasmsBrain NeoplasmsProstatectomyRadiation ToleranceSurvival AnalysisFollow-Up StudiesOrgans at RiskRadiation-Sensitizing AgentsRectal NeoplasmsChemotherapy, AdjuvantParticle AcceleratorsHydroxidesCranial IrradiationRadiometryRadiation DosagePelvic NeoplasmsRadiation PneumonitisTime FactorsBreast NeoplasmsLaryngeal NeoplasmsMastectomy, SegmentalTomography, X-Ray ComputedOrgan Sparing TreatmentsRadiodermatitisHodgkin DiseaseNeoadjuvant TherapyVincristineNeoplasms, Radiation-InducedHeavy Ion RadiotherapyNeoplasms, Second PrimaryMastectomy, Modified RadicalDacarbazinePicratesAntineoplastic AgentsFluorouracilAdenocarcinomaProcarbazineNeoplasmsXerostomiaRadioisotope TeletherapyRadiation-Protective AgentsSpinal NeoplasmsPalliative CarePelvisProstate-Specific AntigenOxidation-ReductionCarcinomaLymphatic MetastasisLymphatic IrradiationCobalt RadioisotopesKaplan-Meier EstimateMastectomyMechlorethamineSalvage TherapyAntioxidantsGlioblastomaBleomycinDoxorubicinHydrogen PeroxideEsophageal NeoplasmsProspective StudiesThoracic NeoplasmsAndrogen AntagonistsIridium Radioisotopes