Addison DiseaseAcute Radiation SyndromeAnemia, PerniciousRadiation InjuriesRadiation Injuries, ExperimentalRadioactive Hazard ReleaseRadiodermatitisRadiation DosageDose-Response Relationship, RadiationSyndromeWhole-Body IrradiationRadiation-Protective AgentsRadiation PneumonitisProctitisRadiation ToleranceLethal Dose 50RadiometryRadiotherapyGamma RaysRadiation, IonizingRadiationRadiation ProtectionMice, Inbred C57BLRadiation MonitoringTumor Markers, BiologicalTumor BurdenTumor Necrosis Factor-alphaCell Line, TumorDown SyndromeMetabolic Syndrome XRadiation OncologyTreatment Outcome