title: An unknown salivary morpholine metabolite.
mesh_terms: D006801:Humans; D008722:Methods; D009025:Morpholines / Q000302:isolation & purification* / Q000378:metabolism; D009602:Nitrosamines / Q000302:isolation & purification* / Q000378:metabolism; D012463:Saliva / Q000032:analysis / Q000378:metabolism*
chemical_list: D009025:Morpholines; D009602:Nitrosamines