1. Cancer Facts and Figures, 1997;American Cancer Society,1997
2. Horgan J. The New York Times Jan. 19, 1998.
3. US. Department of Health and Human Services: The health consequences of smoking: 25 years of progress. A report of the Surgeon General. US Department of Health and Human Services, Public Health Service, Centers for Disease Control, Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health. DHHS Publication No. (CDC) 89–8411, 1989.
4. Time trend and the age-period-cohort effect on the incidence of histologic types of lung cancer in Connecticut, 1960–1989;Zheng;Cancer,1994
5. Cigarette smoking among American teens rises again in 1995;Johnston,1995