Radiotherapy, AdjuvantRadiotherapyRadiotherapy DosageCombined Modality TherapyPostoperative PeriodNeoplasm Recurrence, LocalPostoperative CareRadiotherapy, ConformalNeoplasm StagingCarcinoma, Squamous CellTreatment OutcomeDose FractionationRadiation InjuriesHead and Neck NeoplasmsRetrospective StudiesThymus NeoplasmsThymomaDisease-Free SurvivalOral Surgical ProceduresRadiotherapy, Intensity-ModulatedMucositisRadiotherapy Planning, Computer-AssistedPrognosisSurvival RateRadiotherapy, High-EnergyMastectomy, Modified RadicalMastectomyParotid NeoplasmsMastectomy, SegmentalHysterectomyLymphatic MetastasisSigmoid NeoplasmsChemotherapy, AdjuvantBreast NeoplasmsFollow-Up StudiesSurvival AnalysisBrachytherapyRectal NeoplasmsSkull NeoplasmsBrain NeoplasmsRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedNeck DissectionSalivary Gland NeoplasmsMeningeal NeoplasmsLung NeoplasmsCisplatinAntineoplastic Combined Chemotherapy ProtocolsMouth NeoplasmsUterine Cervical NeoplasmsPneumonectomyAdenocarcinomaTime FactorsFluorouracilCarcinoma, Non-Small-Cell LungMultivariate AnalysisRadiation OncologyProportional Hazards ModelsLymph Node ExcisionKaplan-Meier EstimateNeoplasm MetastasisRadiosurgeryDose-Response Relationship, RadiationProspective StudiesChemoradiotherapyRandomized Controlled Trials as TopicNasopharyngeal NeoplasmsNeoplasm InvasivenessRadiation ToleranceCohort StudiesRisk AssessmentRisk FactorsOrgans at RiskRecurrenceRadiation-Sensitizing AgentsMagnetic Resonance ImagingParticle AcceleratorsCranial IrradiationRadiometryProstatic NeoplasmsRadiation PneumonitisRadiation DosagePelvic NeoplasmsLaryngeal NeoplasmsHodgkin DiseaseRadiodermatitisHeavy Ion RadiotherapyNeoplasms, Radiation-InducedVincristineNeoplasms, Second PrimaryTomography, X-Ray ComputedDacarbazineOrgan Sparing TreatmentsXerostomiaProcarbazineNeoadjuvant TherapyNeoplasmsRadioisotope TeletherapyAntineoplastic AgentsSpinal Neoplasms