Radiotherapy, AdjuvantRadiotherapyRadiotherapy DosageCombined Modality TherapyRadiotherapy, ConformalChemotherapy, AdjuvantNeoplasm Recurrence, LocalPostoperative PeriodRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedDose FractionationRadiotherapy, High-EnergyPostoperative CareRadiation InjuriesTreatment OutcomeNeoplasm StagingCarcinoma, Squamous CellHead and Neck NeoplasmsDisease-Free SurvivalRetrospective StudiesAdjuvants, ImmunologicRadiotherapy, Computer-AssistedSurvival RatePrognosisRadiotherapy, Image-GuidedBreast NeoplasmsBrachytherapySurvival AnalysisFollow-Up StudiesMastectomy, SegmentalThymus NeoplasmsThymomaMucositisMastectomyRectal NeoplasmsLymphatic MetastasisBrain NeoplasmsAntineoplastic Combined Chemotherapy ProtocolsOral Surgical ProceduresMastectomy, Modified RadicalParotid NeoplasmsRadiation OncologyHysterectomyLung NeoplasmsCisplatinSigmoid NeoplasmsFluorouracilSkull NeoplasmsRadiosurgeryDose-Response Relationship, RadiationFreund's AdjuvantNeck DissectionTime FactorsAdenocarcinomaMeningeal NeoplasmsChemoradiotherapyUterine Cervical NeoplasmsCarcinoma, Non-Small-Cell LungSalivary Gland NeoplasmsNasopharyngeal NeoplasmsKaplan-Meier EstimateMouth NeoplasmsProportional Hazards ModelsMultivariate AnalysisRadiation ToleranceOrgans at RiskPneumonectomyNeoplasm MetastasisLymph Node ExcisionRadiation-Sensitizing AgentsProspective StudiesParticle AcceleratorsCranial IrradiationProstatic NeoplasmsRandomized Controlled Trials as TopicRadiometryRadiation DosageRadiation PneumonitisAntineoplastic AgentsNeoadjuvant TherapyPelvic NeoplasmsVincristineLaryngeal NeoplasmsDacarbazineNeoplasm InvasivenessNeoplasms, Second PrimaryRadiodermatitisHodgkin DiseaseNeoplasms, Radiation-InducedHeavy Ion RadiotherapyTomography, X-Ray ComputedRisk FactorsRecurrenceAdjuvants, PharmaceuticProcarbazineRisk AssessmentOrgan Sparing TreatmentsNeoplasmsCohort StudiesMagnetic Resonance Imaging