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2. Reducing the Health Consequences of Smoking—25 Years of Progress: A Report of the Surgeon General;USDHHS,1989
3. The Health Benefits of Smoking Cessation: A Report of the Surgeon General;USDHHS,1990
4. Review and evaluation of smoking cessation methods: The United States and Canada, 1978–1985;Schwartz,1987
5. Essential elements of self-help/minimal intervention strategies for smoking cessation;Glynn;Health Educ Q,1990