Radiotherapy, AdjuvantRadiotherapyRadiotherapy DosageCombined Modality TherapyPostoperative PeriodTreatment OutcomeNeoplasm Recurrence, LocalPostoperative CareRadiotherapy, ConformalRetrospective StudiesNeoplasm StagingCarcinoma, Squamous CellDose FractionationPrognosisHead and Neck NeoplasmsRadiation InjuriesThymus NeoplasmsSurvival RateThymomaFollow-Up StudiesOral Surgical ProceduresDisease-Free SurvivalRadiotherapy, Intensity-ModulatedMucositisRadiotherapy Planning, Computer-AssistedRadiotherapy, High-EnergyMastectomy, Modified RadicalSurvival AnalysisMastectomyParotid NeoplasmsMastectomy, SegmentalBreast NeoplasmsHysterectomyChemotherapy, AdjuvantSigmoid NeoplasmsLymphatic MetastasisBrachytherapyRectal NeoplasmsSkull NeoplasmsBrain NeoplasmsRadiotherapy, Computer-AssistedTime FactorsNeck DissectionRadiotherapy, Image-GuidedAntineoplastic Combined Chemotherapy ProtocolsLung NeoplasmsSalivary Gland NeoplasmsCisplatinMeningeal NeoplasmsMultivariate AnalysisMouth NeoplasmsProspective StudiesOutcome Assessment (Health Care)Proportional Hazards ModelsKaplan-Meier EstimateUterine Cervical NeoplasmsAdenocarcinomaPneumonectomyFluorouracilCarcinoma, Non-Small-Cell LungRadiation OncologyRisk FactorsNeoplasm MetastasisLymph Node ExcisionRandomized Controlled Trials as TopicCohort StudiesRadiosurgeryRisk AssessmentDose-Response Relationship, RadiationPregnancy OutcomeRecurrenceChemoradiotherapyNeoplasm InvasivenessNasopharyngeal NeoplasmsMagnetic Resonance ImagingRadiation ToleranceOrgans at RiskRadiation-Sensitizing AgentsCranial IrradiationProstatic NeoplasmsParticle AcceleratorsTomography, X-Ray ComputedRadiometryRadiation DosageRadiation PneumonitisVincristineLaryngeal NeoplasmsHodgkin DiseasePelvic NeoplasmsNeoplasmsAntineoplastic AgentsNeoplasms, Radiation-InducedNeoplasms, Second PrimaryRadiodermatitisOrgan Sparing TreatmentsHeavy Ion RadiotherapyDacarbazineQuality of LifeOutcome and Process Assessment (Health Care)Procarbazine