Radiation OncologyPhotonsRadiation InjuriesRadiation DosageRadiotherapy DosageRadiotherapyRadiation, IonizingDose-Response Relationship, RadiationRadiotherapy, ConformalEstrogen Replacement TherapyRadiotherapy, Intensity-ModulatedCombined Modality TherapyHormone Replacement TherapyRadiation ToleranceRadiotherapy Planning, Computer-AssistedDose FractionationRadiationRadiotherapy, AdjuvantBrachytherapyRadiation ProtectionRadiometryPostmenopauseComplementary TherapiesRadiosurgeryRadiation PneumonitisBreast NeoplasmsTreatment OutcomeRadiation MonitoringParticle AcceleratorsRadiotherapy, Computer-AssistedCranial IrradiationRadiotherapy, Image-GuidedRadiotherapy, High-EnergyRetrospective StudiesNeoplasms, Radiation-InducedRadiation-Sensitizing AgentsNeoplasm Recurrence, LocalBrain NeoplasmsProgestinsOrgans at RiskFollow-Up StudiesMenopauseTime FactorsTomography, Emission-Computed, Single-PhotonRisk FactorsRadiation Injuries, ExperimentalHead and Neck NeoplasmsRadiodermatitisUnited StatesNeoplasm StagingGamma RaysProstatic NeoplasmsCohort StudiesCosmic RadiationCaliforniaHealth Services MisuseTomography, X-Ray ComputedChemoradiotherapyPhantoms, ImagingRadiation-Protective AgentsProspective StudiesAntineoplastic Combined Chemotherapy ProtocolsCobalt RadioisotopesSurvival AnalysisMammographyCarcinoma, Squamous CellDisease-Free SurvivalMastectomy, SegmentalSurvival RateChemotherapy, AdjuvantRadiobiologyNeoplasmsAge Factors