RadiotherapyRadiotherapy DosageRadiotherapy, ConformalRadiotherapy, AdjuvantRadiotherapy, Intensity-ModulatedComputersRadiotherapy Planning, Computer-AssistedRadiotherapy, High-EnergyCombined Modality TherapyDose FractionationRadiation InjuriesRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedRadiation OncologyTreatment OutcomeRadiosurgeryDose-Response Relationship, RadiationHead and Neck NeoplasmsBrachytherapyNeoplasm Recurrence, LocalNeoplasm StagingChemoradiotherapyComputer SimulationAntineoplastic Combined Chemotherapy ProtocolsNasopharyngeal NeoplasmsBrain NeoplasmsCarcinoma, Squamous CellDisease-Free SurvivalRadiation ToleranceRetrospective StudiesSurvival RateOrgans at RiskRadiation-Sensitizing AgentsSurvival AnalysisLung NeoplasmsFollow-Up StudiesRectal NeoplasmsChemotherapy, AdjuvantParticle AcceleratorsCisplatinPrognosisCranial IrradiationRadiometryRadiation DosageProstatic NeoplasmsRadiation PneumonitisTime FactorsBreast NeoplasmsPelvic NeoplasmsTomography, X-Ray ComputedLaryngeal NeoplasmsMastectomy, SegmentalAttitude to ComputersHodgkin DiseaseRadiodermatitisNeoplasms, Radiation-InducedHeavy Ion RadiotherapyVincristineNeoplasms, Second PrimaryDacarbazineNeoplasmsOrgan Sparing TreatmentsXerostomiaProcarbazineFluorouracilAntineoplastic AgentsNeoadjuvant TherapyRadioisotope TeletherapyComputer PeripheralsSpinal NeoplasmsAdenocarcinomaPalliative CareCobalt RadioisotopesCarcinoma, Non-Small-Cell LungLymphatic IrradiationMechlorethamineComputer LiteracyUterine Cervical NeoplasmsCarcinomaGlioblastomaRadiation-Protective AgentsComputer SystemsPelvisBleomycinKaplan-Meier EstimateSalvage TherapyProspective StudiesMastectomyFeasibility StudiesIridium RadioisotopesAntineoplastic Agents, AlkylatingOsteoradionecrosisGliomaEsophageal NeoplasmsLymphatic MetastasisThoracic NeoplasmsPatient PositioningTumor BurdenDoxorubicinRadiotherapy Setup Errors