Dose-Response Relationship, RadiationUltraviolet RaysNeoplasmsRadiation InjuriesRadiotherapy, Intensity-ModulatedRadiation DosageRadiation, IonizingCarcinogensRadiotherapy DosageRadiotherapy Planning, Computer-AssistedRadiotherapyRadiation ToleranceRadiotherapy, ConformalAneuploidyRadiation OncologyRadiationCell Transformation, NeoplasticCombined Modality TherapyRadiation ProtectionRadiometryRadiation MonitoringDose FractionationRisk AssessmentRadiotherapy, AdjuvantOrgans at RiskRadiation PneumonitisBrachytherapyNeoplasms, Radiation-InducedRisk FactorsParticle AcceleratorsRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedHead and Neck NeoplasmsProstatic NeoplasmsRadiosurgeryRadiation Injuries, ExperimentalTreatment OutcomeNeoplasm Recurrence, LocalRadiation-Sensitizing AgentsGamma RaysCosmic RadiationNeoplasm StagingBreast NeoplasmsCranial IrradiationBrain NeoplasmsRetrospective StudiesRadiodermatitisCarcinoma, Squamous CellAntineoplastic Combined Chemotherapy ProtocolsSurvival AnalysisRadiotherapy, High-EnergySurvival RateChemoradiotherapyFollow-Up StudiesLung NeoplasmsDisease-Free SurvivalRadiation-Protective AgentsBackground RadiationTumor BurdenTomography, X-Ray ComputedPrognosisChemotherapy, AdjuvantAntineoplastic AgentsEarly Detection of CancerCobalt RadioisotopesAdenocarcinomaRadiation EffectsTime FactorsCisplatinRectal NeoplasmsNeoplasm MetastasisNasopharyngeal NeoplasmsMastectomy, SegmentalLymphatic IrradiationCarcinoma, Non-Small-Cell LungOrgan Sparing TreatmentsRadiobiologyCarcinomaPancreatic NeoplasmsFluorouracilFilm DosimetryNeoplasms, Second PrimaryPhantoms, ImagingUterine Cervical NeoplasmsRelative Biological EffectivenessXerostomiaProstate-Specific AntigenX-RaysMice, NudeProspective StudiesPelvic NeoplasmsCell Line, TumorDNA DamageAcute Radiation SyndromeNeoplasm InvasivenessSEER ProgramOvarian NeoplasmsProton TherapyCell SurvivalKaplan-Meier Estimate