RadiotherapyRadiotherapy DosageEnergy MetabolismRadiation InjuriesRadiotherapy, ConformalRadiotherapy, AdjuvantRadiation DosageRadiation, IonizingDose-Response Relationship, RadiationRadiotherapy, High-EnergyRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedCombined Modality TherapyEnergy IntakeRadiation TolerancePhosphocreatineRadiation OncologyDose FractionationRadiationRadiotherapy, Computer-AssistedEnergy TransferRadiation ProtectionCosmic RadiationRadiotherapy, Image-GuidedParticle AcceleratorsRadiation MonitoringRadiometryRadiation PneumonitisTreatment OutcomeBrachytherapyLinear Energy TransferNeoplasms, Radiation-InducedRadiosurgeryRadiation-Sensitizing AgentsHeavy IonsAdenosine TriphosphateTime FactorsHead and Neck NeoplasmsNeoplasm Recurrence, LocalNeoplasm StagingChemoradiotherapyRadiation Injuries, ExperimentalPhosphatesRelative Biological EffectivenessBrain NeoplasmsCarcinoma, Squamous CellGamma RaysAntineoplastic Combined Chemotherapy ProtocolsDisease-Free SurvivalRetrospective StudiesOrgans at RiskRadiation-Protective AgentsNasopharyngeal NeoplasmsMagnetic Resonance SpectroscopySurvival RateRadiodermatitisX-RaysCranial IrradiationFollow-Up StudiesSurvival AnalysisCobalt RadioisotopesChemotherapy, AdjuvantCisplatinRectal NeoplasmsPrognosisTomography, X-Ray ComputedBreast NeoplasmsBackground RadiationNeoplasmsLung NeoplasmsBody WeightRadiobiologyPelvic NeoplasmsThermodynamicsSpectrometry, GammaMyocardiumMastectomy, SegmentalLactatesKineticsElectronsHodgkin DiseaseRadiation EffectsLaryngeal NeoplasmsUltraviolet RaysAntineoplastic AgentsNeoplasms, Second PrimaryDacarbazineModels, BiologicalProstatic NeoplasmsDietAdenine NucleotidesProtonsVincristineSolar EnergyFluorouracilHeavy Ion RadiotherapyXerostomiaGlycolysisRadioisotope TeletherapyOxygen Consumption