1. 1) Mecklenburg RE, Christen AG, Gerbert B, Gift MC (1991) How to help your patients stop using tobacco. In: A National Cancer institute manual for oral health team, NCI, NIH, PHS, USDHHS, NIH Publication, No.91-3191, Bethesda.
2. 2) FDI World Dental Federation (1996) Position statement on tobacco. FDI World 5, 9.
3. 3) Hanioka T, Takaya K, Tanaka M, Kishimoto M, Shizukuisi S (1997) Smoking cessation practices and barriers in dental practice. J Dent Health 47, 693-702 (in Japanese with English abstract).
4. 4) Chestnutt IG, Binnie VI (1995) Smoking cessation counseling―a role for the dental profession? Br Dent J 179, 411-5.
5. 5) Nishio N, Imamura T (2005) Smoking prevalence among dentists in Hyogo, Japan. Jpn J Dent Prac Admin 40, 170-5.