title: A study of the mechanism of halitosis occurrence in periodontal patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D006209:Halitosis / Q000209:etiology*; D006801:Humans; D007962:Leukocytes / Q000378:metabolism; D008875:Middle Aged; D010518:Periodontitis / Q000378:metabolism*; D012463:Saliva / Q000378:metabolism; D013438:Sulfhydryl Compounds / Q000378:metabolism; D013455:Sulfur / Q000378:metabolism
chemical_list: D013438:Sulfhydryl Compounds; D013455:Sulfur