1. Oral malodour: an indicator of health status and oral cleanliness;Tonzetich;Int Dent J,1978
2. What to do about halitosis;Scully;BMJ,1994
3. Clinical assessment of bad breath: current concepts;Rosenberg;JADA,1996
4. Multidisciplinary breath-odour clinic;Delanghe;Lancet,1997
5. Halitosis;Attia;Can Med Assoc J,1982