IodineIodine RadioisotopesRadioisotopesZinc RadioisotopesIodine CompoundsRadioisotope Dilution TechniqueStrontium RadioisotopesKrypton RadioisotopesIndium RadioisotopesGoiter, EndemicGoiterSodium RadioisotopesRadionuclide ImagingRadioactivityBarium RadioisotopesYttrium RadioisotopesTin RadioisotopesCarbon RadioisotopesThyroid GlandIron RadioisotopesCopper RadioisotopesPhosphorus RadioisotopesTechnetiumPotassium IodideSensitivity and SpecificityBeta ParticlesSodium Chloride, DietaryTechnetium Tc 99m Sulfur ColloidMercury RadioisotopesIsotope LabelingCesium IsotopesPovidone-IodineCerium RadioisotopesCobalt IsotopesDeficiency DiseasesHafniumRadiopharmaceuticalsGold RadioisotopesDiagnostic Techniques, RadioisotopeRadioimmunotherapyLead RadioisotopesAstatineZinc IsotopesSulfur RadioisotopesIodidesCadmium RadioisotopesIodophorsDiagnostic ErrorsSoil Pollutants, RadioactiveThyrotropinLutetiumRheniumBromine RadioisotopesSamariumDiagnostic Tests, RoutineSubdural EffusionScintillation CountingDiagnostic Techniques and ProceduresCalcium IsotopesRadioactive WasteThyroxineCongenital HypothyroidismSerum Albumin, Radio-IodinatedThyroid Function TestsDiagnostic ImagingThyroglobulinRuthenium RadioisotopesMethodsThyroid DiseasesIodized OilRadiometric DatingSodium Pertechnetate Tc 99mReproducibility of ResultsTissue DistributionIodine IsotopesSelenium RadioisotopesAlpha ParticlesNuclear MedicineHeterocyclic Compounds, 1-RingWhole-Body CountingPentetic AcidHypothyroidismTungstenRadiation DosageIsotopesRadiometryRadioisotope TeletherapyTechnetium Tc 99m PentetateSpectrometry, GammaIodoproteinsPositron-Emission TomographyThyroid HormonesHyperthyroidismRosaniline DyesThyroid NeoplasmsTomography, X-Ray ComputedReagent Kits, DiagnosticIodide PeroxidaseTime FactorsTritium