MethemoglobinemiaNitritesSodium NitriteCytochrome-B(5) ReductaseBenzocaineCyanosisCytochrome ReductasesMethemoglobinDapsoneMethylene BlueNitrite ReductasesLeprostatic AgentsPrilocainePeritonsillar AbscessNitratesPrussian Blue ReactionSulfhemoglobinemiaAntidotesHematemesisMandibular FracturesOximetryAnesthetics, Local