Radiation OncologyRadiotherapyRadiotherapy DosageHealth PhysicsRadiotherapy, ConformalRadiation InjuriesMedical OncologyRadiotherapy, Computer-AssistedRadiotherapy Planning, Computer-AssistedRadiotherapy, AdjuvantBrachytherapyRadiotherapy, High-EnergyRadiotherapy, Intensity-ModulatedCancer Care FacilitiesRadiotherapy, Image-GuidedCombined Modality TherapyRadiobiologyDose FractionationDose-Response Relationship, RadiationRadiation DosageNeoplasmsRadiation, IonizingRadiation ToleranceSocieties, MedicalOncology NursingRadiology Department, HospitalRadiosurgeryTreatment OutcomeChemoradiotherapyRetrospective StudiesNeoplasm StagingHead and Neck NeoplasmsRadiationRadiation ProtectionNeoplasm Recurrence, LocalQuality Assurance, Health CareEmergency Service, HospitalBrain NeoplasmsRadiation MonitoringFollow-Up StudiesOncology Service, HospitalSurvival RatePrognosisTomography, X-Ray ComputedBreast NeoplasmsPositron-Emission TomographyAntineoplastic Combined Chemotherapy ProtocolsRadiation PneumonitisUnited StatesProstatic NeoplasmsHealth PlanningAccreditationOutpatient Clinics, HospitalNeoplasms, Radiation-InducedRadiometryRadiation-Sensitizing AgentsDisease-Free SurvivalForecastingQuestionnairesSurvival AnalysisTime FactorsCarcinoma, Squamous CellPilot ProjectsCisplatinRadiation Injuries, ExperimentalPhysician's Practice PatternsAntineoplastic AgentsHospital DepartmentsPractice Guidelines as TopicChemotherapy, AdjuvantParticle AcceleratorsOrgans at RiskJapanProspective StudiesRadiation-Protective AgentsNasopharyngeal NeoplasmsGamma RaysAmbulatory Care FacilitiesLung NeoplasmsHealth Care SurveysCranial IrradiationRadiodermatitisCosmic RadiationCobalt RadioisotopesVincristinePalliative CareRectal Neoplasms