1. Tobacco control: overview;Reid;Br Med Bull,1996
2. U.S. Department of Health and Human Services, Strategies to control tobacco use in the United states: a blueprint for public health action in the 1990's, Washington, Government Printing Office, 1991. [NIH Publication No. 92-3316]
3. Health Canada, Canada's health promotion survey, 1990, Ottawa, Minister of Supply and Services, 1991.
4. Methods used to quit smoking in the United States. Do cessation programs help?;Fiore;JAMA,1990
5. An analysis of the effectiveness of interventions intended to help people stop smoking;Law;Arch Intern Med,1995