Hydrogen SulfideWaterCystathionine gamma-LyaseHydrogen BondingSulfidesCystathionine beta-SynthaseHydrogenHydrogen PeroxideAlkynesThiosulfatesOrganothiophosphorus CompoundsWater SupplySulfurSulfurtransferasesFresh WaterSulfatesSulfhemoglobinCysteineThioamidesHeparitin SulfateBody WaterSulfur CompoundsCysteine SynthaseAminooxyacetic AcidAir PollutantsOxidation-ReductionKATP ChannelsSulfitesWater PurificationWater PollutionEncephalomalaciaGasesGlycineSulfite Reductase (NADPH)HalitosisSulfur Oxides