ThalliumThallium RadioisotopesHydrogen SulfideSulfidesFerrocyanidesRadioisotopesTomography, Emission-Computed, Single-PhotonDipyridamoleExercise TestCystathionine gamma-LyaseHeartCoronary DiseaseAntidotesThiosulfatesAlopeciaSulfur OxidesRodenticidesRadionuclide VentriculographyPoisoningSulfurGated Blood-Pool ImagingIodobenzenesDobutamineOrganotechnetium CompoundsSulindacCystathionine beta-SynthaseCoronary AngiographyMustard GasCoronary CirculationTomography, Emission-ComputedAllyl CompoundsRadionuclide ImagingGalliumPotassium RadioisotopesAngina PectorisElectrocardiographyOlfactory Nerve InjuriesMyocardial Stunning