Radiotherapy DosageRadiotherapyRadiotherapy, AdjuvantRadiotherapy, ConformalRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedCombined Modality TherapyRadiotherapy, High-EnergyRadiation InjuriesDose FractionationRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedTreatment OutcomeRadiation OncologyNeoplasm StagingHead and Neck NeoplasmsNeoplasm Recurrence, LocalNeoplasmsRadiosurgeryDose-Response Relationship, RadiationRetrospective StudiesBrachytherapyGene DosageAntineoplastic Combined Chemotherapy ProtocolsCarcinoma, Squamous CellBrain NeoplasmsDosage Compensation, GeneticChemoradiotherapyHematologic NeoplasmsSurvival RateLung NeoplasmsNasopharyngeal NeoplasmsDisease-Free SurvivalFollow-Up StudiesPrognosisSurvival AnalysisNeoplasms, Second PrimaryRadiation ToleranceOrgans at RiskAntineoplastic AgentsBreast NeoplasmsRadiation-Sensitizing AgentsRectal NeoplasmsCisplatinDosage FormsHodgkin DiseaseChemotherapy, AdjuvantProstatic NeoplasmsTomography, X-Ray ComputedPelvic NeoplasmsRadiation DosageTime FactorsCranial IrradiationNeoplasms, Radiation-InducedParticle AcceleratorsRadiometryAdenocarcinomaRadiation PneumonitisLaryngeal NeoplasmsCarcinomaVincristineMastectomy, SegmentalLymphomaDacarbazineDrug Administration ScheduleFluorouracilRadiodermatitisHeavy Ion RadiotherapyProcarbazineOrgan Sparing TreatmentsXerostomiaProspective StudiesThoracic NeoplasmsSpinal NeoplasmsNeoadjuvant TherapyGenital Neoplasms, FemalePalliative CareUterine Cervical NeoplasmsCell Line, TumorGlioblastomaRadioisotope TeletherapyCarcinoma, Non-Small-Cell LungLymphoma, Non-HodgkinKaplan-Meier EstimateSarcomaEsophageal NeoplasmsGliomaNeoplasm MetastasisCobalt RadioisotopesLymphatic MetastasisBone NeoplasmsDoxorubicinMechlorethamineLymphatic IrradiationCyclophosphamideAntineoplastic Agents, AlkylatingSalvage TherapyTumor Markers, BiologicalDose-Response Relationship, DrugPositron-Emission Tomography