ThalliumThallium RadioisotopesAbsorptionIntestinal AbsorptionFerrocyanidesRadioisotopesTomography, Emission-Computed, Single-PhotonDipyridamoleExercise TestHeartCoronary DiseaseAntidotesAlopeciaSkin AbsorptionRodenticidesBiological AvailabilityRadionuclide VentriculographyPoisoningGated Blood-Pool ImagingIodobenzenesSpectrophotometry, AtomicX-Ray Absorption SpectroscopyJejunumDobutamineOrganotechnetium CompoundsCoronary AngiographyCoronary CirculationTomography, Emission-ComputedRadionuclide ImagingSpectrophotometryGalliumPotassium RadioisotopesAngina PectorisIronCharcoalSensitivity and SpecificityElectrocardiographySpectrum AnalysisOlfactory Nerve InjuriesIntestine, SmallMyocardial Stunning