Radiation PneumonitisRadiotherapy, ConformalDose-Response Relationship, RadiationRadiation DosageRadiotherapy DosageAlveolitis, Extrinsic AllergicLung NeoplasmsRadiation InjuriesKrypton RadioisotopesCryptogenic Organizing PneumoniaDose FractionationRadiotherapyRadiation Injuries, ExperimentalCarcinoma, Non-Small-Cell LungPneumoniaLungRadiosurgeryRadiotherapy, High-EnergyRadiography, ThoracicRadiation, IonizingRadiotherapy Planning, Computer-AssistedRadiotherapy, Intensity-ModulatedCombined Modality TherapyTomography, X-Ray ComputedLung Diseases, InterstitialRadiation ToleranceRadiationRadiation ProtectionAntineoplastic Combined Chemotherapy ProtocolsRadiation MonitoringRetrospective Studies