RadiotherapyRadiotherapy DosageRadiotherapy, ConformalRadiotherapy, AdjuvantRadiotherapy, Intensity-ModulatedCombined Modality TherapyRadiotherapy Planning, Computer-AssistedRadiotherapy, High-EnergyDose FractionationRadiation InjuriesRadiotherapy, Computer-AssistedRadiotherapy, Image-GuidedTreatment OutcomeChemoradiotherapyRadiation OncologyHead and Neck NeoplasmsNeoplasm StagingDose-Response Relationship, RadiationRadiosurgeryBrachytherapyNeoplasm Recurrence, LocalAntineoplastic Combined Chemotherapy ProtocolsCarcinoma, Squamous CellNasopharyngeal NeoplasmsDisease-Free SurvivalCisplatinRetrospective StudiesBrain NeoplasmsSurvival RateLung NeoplasmsSurvival AnalysisRadiation-Sensitizing AgentsRadiation ToleranceOrgans at RiskFollow-Up StudiesChemotherapy, AdjuvantRectal NeoplasmsPrognosisCranial IrradiationParticle AcceleratorsRadiation PneumonitisRadiometryFluorouracilProstatic NeoplasmsRadiation DosageTime FactorsBreast NeoplasmsLaryngeal NeoplasmsPelvic NeoplasmsMastectomy, SegmentalTomography, X-Ray ComputedDacarbazineAntineoplastic AgentsVincristineNeoadjuvant TherapyHodgkin DiseaseRadiodermatitisOrgan Sparing TreatmentsHeavy Ion RadiotherapyNeoplasms, Radiation-InducedNeoplasms, Second PrimaryNeoplasmsXerostomiaCarcinoma, Non-Small-Cell LungAdenocarcinomaProcarbazineRadioisotope TeletherapyUterine Cervical NeoplasmsPalliative CareDrug Administration ScheduleLymphatic IrradiationSpinal NeoplasmsKaplan-Meier EstimateCobalt RadioisotopesCarcinomaProspective StudiesGlioblastomaEsophageal NeoplasmsRadiation-Protective AgentsMechlorethamineFeasibility StudiesThoracic NeoplasmsAntineoplastic Agents, AlkylatingSalvage TherapyDoxorubicinLymphatic MetastasisPelvisVinblastineBleomycinTumor BurdenMastectomyOropharyngeal NeoplasmsGliomaCyclophosphamideIridium RadioisotopesMucositisOsteoradionecrosisCarboplatinHypopharyngeal NeoplasmsLaryngectomy