RadiotherapyRadiotherapy DosageRadiotherapy, AdjuvantRadiotherapy, ConformalRadiotherapy, Intensity-ModulatedCombined Modality TherapyRadiotherapy Planning, Computer-AssistedRadiotherapy, High-EnergyDose FractionationTreatment OutcomeRadiation InjuriesRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedRetrospective StudiesRadiation OncologyNeoplasm Recurrence, LocalFollow-Up StudiesNeoplasm StagingRadiosurgeryHead and Neck NeoplasmsBrachytherapyDose-Response Relationship, RadiationPostoperative ComplicationsChemoradiotherapySurvival RateAntineoplastic Combined Chemotherapy ProtocolsDisease-Free SurvivalBrain NeoplasmsCarcinoma, Squamous CellSurvival AnalysisTime FactorsPrognosisBariatric SurgeryNasopharyngeal NeoplasmsChemotherapy, AdjuvantRectal NeoplasmsLung NeoplasmsProspective StudiesRadiation ToleranceOrgans at RiskTomography, X-Ray ComputedPostoperative PeriodRadiation-Sensitizing AgentsCisplatinGeneral SurgeryPreoperative CareMastectomy, SegmentalParticle AcceleratorsBreast NeoplasmsPostoperative CareCranial IrradiationThoracic SurgeryProstatic NeoplasmsRadiometryPelvic NeoplasmsRadiation DosageRadiation PneumonitisLaryngeal NeoplasmsNeoadjuvant TherapyCardiac Surgical ProceduresOrgan Sparing TreatmentsFluorouracilVincristineHodgkin DiseaseRadiodermatitisNeoplasms, Radiation-InducedNeoplasms, Second PrimarySpinal NeoplasmsHeavy Ion RadiotherapyDacarbazineAntineoplastic AgentsAdenocarcinomaNeoplasmsXerostomiaProcarbazineIntraoperative CareKaplan-Meier EstimateMastectomySurgery, PlasticPalliative CareRadioisotope TeletherapyRisk FactorsSurgery, Computer-AssistedFeasibility StudiesPelvisCarcinomaCarcinoma, Non-Small-Cell LungSurgical Procedures, OperativeNeurosurgical ProceduresLymphatic MetastasisEsophageal NeoplasmsCobalt RadioisotopesUterine Cervical NeoplasmsGlioblastomaSurgery, OralThoracic Surgery, Video-AssistedCataract ExtractionSalvage TherapyColorectal SurgeryLymphatic Irradiation