#U.S. Department of Health and Human Services. The Health Consequences of Involuntary Smoking: A Report of the Surgeon General (1986).
#U.S. Department of Health and Human Services. The Health Consequences of Involuntary Smoking: A Report of the Surgeon General (1986).
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#National Institutes of Health (NIH), National Cancer Institute. Smoking and Tobacco Control Monograph 10 (1999): Health Effects of Exposure to Environmental Tobacco Smoke.
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#[[National Institutes of Health]] (NIH), National Cancer Institute. Smoking and Tobacco Control Monograph 10 (1999): Health Effects of Exposure to Environmental Tobacco Smoke.