1. Baek, S. O., Kim, U. S. and Perry, R. Indoor air quality in homes, offices, and restaurants in Korean urban areas — indoor/outdoor relationships. Atmos Environ. (1997) 31: 529–544.
2. Centers for Disease Control and Prevention, US Department of Health and Human Services. State laws on tobacco control — United States, 1998. CDC Surveill Summ. (1999) 48(3) (SS-4803): 21–40.
3. Centers for Disease Control and Prevention, US Department of Health and Human Services. State-specific prevalence of current cigarette smoking among adults and the proportion of adults who work in a smoke-free environment — United States, 1999. Morb Mortal Wkly Rep. (2000) 49(43): 978–982.
4. Conner, J. M., Oldaker, G. B. III, and Murphy, J. J. Method for assessing the contribution of environmental tobacco smoke to respirable suspended particles in indoor environments. Environ Technol. (1990) 11: 189–196.
5. Daisey, J. M., Mahanama, K. R. R. and Hodgson, A. T. Toxic volatile organic compounds in simulated environmental tobacco smoke: emission factors for exposure assessment. J Expos Anal Environ Epidemiol. (1998) 8: 313–334.