AmmoniaCarbon RadioisotopesCarbonRadioisotopesZinc RadioisotopesRadioisotope Dilution TechniqueStrontium RadioisotopesCarbon DioxideIodine RadioisotopesKrypton RadioisotopesCarbon MonoxideNanotubes, CarbonIndium RadioisotopesSodium RadioisotopesRadioactivityBarium RadioisotopesRadionuclide ImagingYttrium RadioisotopesCarbon IsotopesTin RadioisotopesIron RadioisotopesCopper RadioisotopesPhosphorus RadioisotopesBeta ParticlesTechnetiumCarbon Monoxide PoisoningIsotope LabelingMercury RadioisotopesTechnetium Tc 99m Sulfur ColloidCesium IsotopesCerium RadioisotopesCobalt IsotopesHafniumNitrogenGold RadioisotopesLead RadioisotopesDiagnostic Techniques, RadioisotopeZinc IsotopesSulfur RadioisotopesCadmium RadioisotopesAstatineRadioimmunotherapyLutetiumNitrosomonasRheniumNitrogen RadioisotopesRadiopharmaceuticalsSamariumCarbamoyl-Phosphate Synthase (Ammonia)Soil Pollutants, RadioactiveCarbon TetrachlorideBromine RadioisotopesScintillation CountingSubdural EffusionGlutamineCalcium IsotopesUreaRadioactive WasteCarbon SequestrationGlutamate-Ammonia LigaseRadiometric DatingSerum Albumin, Radio-IodinatedHyperammonemiaRuthenium RadioisotopesIsotopesCarbon DisulfideMethodsAmmonium ChlorideSelenium RadioisotopesAlpha ParticlesTungstenHeterocyclic Compounds, 1-RingNitrificationSodium Pertechnetate Tc 99mTissue DistributionSpectrometry, GammaRadioisotope TeletherapyPentetic AcidNuclear MedicineTechnetium Tc 99m PentetateKineticsHydrogen-Ion ConcentrationTritiumRadiometryRosaniline DyesNostoc communeCarbon Tetrachloride PoisoningWhole-Body CountingPotassium RadioisotopesOrganometallic CompoundsIntestinal AbsorptionTime FactorsAbsorptionCarbon FootprintIodohippuric AcidAmino AcidsGlucoseRadiation DosagePositron-Emission TomographyGlutaminase