title: On call.  When I awaken in the morning, I have terrible bad breath.  My breath seems okay during the rest of the day, but I worry about developing halitosis.  What causes bad breath?
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D003729:Dental Care; D003773:Dental Plaque / Q000517:prevention & control; D005421:Flavoring Agents / Q000627:therapeutic use; D006209:Halitosis / Q000517:prevention & control*; D006801:Humans; D009909:Oral Health; D014099:Toothbrushing
chemical_list: D005421:Flavoring Agents