NitrosationNitroso CompoundsNitrosaminesNitratesSodium NitriteS-NitrosoglutathioneNitrites2-NaphthylamineS-NitrosothiolsPostgastrectomy SyndromesDiethylaminesNitrogen OxidesNitric OxideSulfhydryl CompoundsNitrate ReductasesDimethylnitrosamineAnemia, PerniciousNitrite ReductasesAscorbic AcidFormatesNitrate ReductaseGlutathione DisulfideNitric Oxide DonorsCarcinogensGlutathioneNitrogenCysteineAnaerobiosisOxidation-ReductionAerobiosisIndicators and ReagentsCatalysisChemistryChemical PhenomenaDietChromatography, High Pressure LiquidOxygen