ThalliumThallium RadioisotopesMass SpectrometryRadioisotopesIsotopesIsotope LabelingZinc RadioisotopesRadioisotope Dilution TechniqueCarbon IsotopesNitrogen IsotopesOxygen IsotopesFerrocyanidesIodine RadioisotopesStrontium RadioisotopesTomography, Emission-Computed, Single-PhotonRadionuclide ImagingZinc IsotopesKrypton RadioisotopesIndium RadioisotopesDipyridamoleSodium RadioisotopesExercise TestRadioactivityCarbon RadioisotopesHeartBarium RadioisotopesCoronary DiseaseYttrium RadioisotopesTin RadioisotopesIron RadioisotopesCopper RadioisotopesPhosphorus RadioisotopesTechnetiumSoft Tissue NeoplasmsRadiopharmaceuticalsAntidotesBeta ParticlesPotassium RadioisotopesSulfur IsotopesCesium IsotopesTechnetium Tc 99m Sulfur ColloidDeuteriumMercury RadioisotopesCobalt IsotopesLead RadioisotopesAlopeciaCerium RadioisotopesHafniumIron IsotopesGold RadioisotopesSulfur RadioisotopesRodenticidesDiagnostic Techniques, RadioisotopeTomography, Emission-ComputedSensitivity and SpecificityRadionuclide VentriculographyCadmium RadioisotopesRadioimmunotherapyAstatinePoisoningLutetiumRheniumGated Blood-Pool ImagingRadiometric DatingSamariumPalate, SoftSoil Pollutants, RadioactiveIodobenzenesTandem Mass SpectrometryTissue DistributionScintillation CountingBody Mass IndexTime FactorsOrganotechnetium CompoundsEvaluation Studies as TopicKineticsRadioactive WasteStrontium IsotopesSpectrometry, Mass, Electrospray IonizationBromine RadioisotopesSerum Albumin, Radio-IodinatedCalcium IsotopesSoft Tissue InjuriesSelenium RadioisotopesSubdural EffusionDobutamineTritiumGallium RadioisotopesCoronary AngiographyCoronary CirculationAlpha ParticlesMethodsSodium Pertechnetate Tc 99mRuthenium RadioisotopesSoft Tissue InfectionsPentetic AcidGalliumSpectrometry, GammaIntestinal AbsorptionTungsten