U.S. DHHS (U.S. Department of Health and Human Services). 1988. The Health Consequences of Smoking, Nicotine Addiction; A Report of the Surgeon General. Atlanta, GA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention.

U.S. DHHS (U.S. Department of Health and Human Services). 1989. Reducing the Health Consequences of Smoking; A Report of the Surgeon General. Washington, DC: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention.

U.S. DHHS (U. S. Department of Health and Human Services). 1990. The Health Benefits of Smoking Cessation; A Report of the Surgeon General. Rockville, MD: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention.

Uhlig T, Hagen KB, Kvien TK. 1999. Current tobacco smoking, formal education, and the risk of rheumatoid arthritis. J Rheumatol 26(1):47–54.

Vineis P, Porta M. 1996. Causal thinking, biomarkers, and mechanisms of carcinogenesis. J Clin Epidemiol 49(9):951–956.

Wang X, Tager IB, Van Vunakis H, Speizer FE, Hanrahan JP. 1997. Maternal smoking during pregnancy, urine cotinine concentrations, and birth outcomes. A prospective cohort study. Int J Epidemiol 26(5):978–988.

Witschi H, Espiritu I, Maronpot RR, Pinkerton KE, Jones AD. 1997a. The carcinogenic potential of the gas phase of environmental tobacco smoke. Carcinogenesis 18(11):2035– 2042.

Witschi H, Espiritu I, Peake JL, Wu K, Maronpot RR, Pinkerton KE. 1997b. The carcinogenicity of environmental tobacco smoke. Carcinogenesis 18(3):575–586.

Witschi H, Espiritu I, Uyeminami D. 1999. Chemoprevention of tobacco smoke-induced lung tumors in A/J strain mice with dietary myo-inositol and dexamethasone. Carcinogenesis 20(7):1375–1378.

Witschi H, Uyeminami D, Moran D, Espiritu I. 2000. Chemoprevention of tobacco-smoke lung carcinogenesis in mice after cessation of smoke exposure. Carcinogenesis 21(5):977– 982.