Radiotherapy, AdjuvantCombined Modality TherapyRadiotherapy DosageNeoplasm Recurrence, LocalSarcomaMastectomy, SegmentalNeoplasm StagingSEER ProgramBreast NeoplasmsTreatment OutcomeChemotherapy, AdjuvantRetrospective StudiesDisease-Free SurvivalSurvival AnalysisRadiation InjuriesFollow-Up StudiesDose FractionationBrachytherapyRadiation DosagePrognosisAdjuvants, ImmunologicRadiotherapyRadiation, IonizingDose-Response Relationship, ImmunologicRadiotherapy, ConformalRadiotherapy, Intensity-ModulatedRadiation ToleranceSoft Tissue NeoplasmsRadiation OncologySeminomaCarcinoma, Merkel CellMastectomyRadiotherapy Planning, Computer-AssistedSurvival RateRectal NeoplasmsRadiationAntineoplastic Combined Chemotherapy ProtocolsFreund's AdjuvantProstatectomyRadiation ProtectionLymphatic MetastasisRadiation PneumonitisRadiosurgeryRadiation MonitoringTime FactorsRadiotherapy, Computer-AssistedRadiometryCranial IrradiationRadiotherapy, Image-GuidedBrain NeoplasmsRadiation-Sensitizing AgentsNeoplasms, Radiation-InducedParticle AcceleratorsHead and Neck NeoplasmsRadiotherapy, High-EnergyRadiation Injuries, ExperimentalRadiodermatitisOrgans at RiskProspective StudiesAdjuvants, PharmaceuticProstatic NeoplasmsGamma RaysFluorouracilChemoradiotherapyCarcinoma, Squamous CellRadiation-Protective AgentsAdenocarcinomaCosmic RadiationTomography, X-Ray ComputedAntineoplastic AgentsActuarial AnalysisCisplatinNeoplasmsCobalt RadioisotopesLung NeoplasmsLymphatic IrradiationFour-Dimensional Computed TomographyBackground RadiationTumor BurdenDacarbazineGlioblastomaNeoplasms, Second PrimaryBrain Stem NeoplasmsRadiobiologyNeoadjuvant TherapyAntineoplastic Agents, HormonalCerebellar NeoplasmsHolcusKaplan-Meier EstimateAndrogen AntagonistsRadiotherapy Setup ErrorsProstate-Specific AntigenNasopharyngeal NeoplasmsUltraviolet RaysPelvic NeoplasmsRadiation EffectsCarcinoma, Non-Small-Cell LungCyclophosphamideGlottisX-Rays