1. American Psychiatric Association (1980) Diagnostic and statistical manual of mental disorders, 3rd edn. American Psychiatric Association, Washington, DC
2. American Psychiatric Association (1987) Diagnostic and statistical manual of mental disorders, 3rd edn. Revised. American Psychiatric Association, Washington, DC
3. American Psychiatric Association (1994) Diagnostic and statistical manual of mental disorders, 4th edn. American Psychiatric Association, Washington, DC
4. Balfour DJ, Fagerstrom KO (1996) Pharmacology of nicotine and its therapeutic use in smoking cessation and neurodegenerative disorders. Pharmacol Ther 72:51–81
5. Balster RL (1983) Comments on abuse liability of Nicorette. FDA Drug Abuse Advisory Committee, Rockville, MD