Columbia subject headings:
Environmental health.
Health risk assessment.
Tobacco smoke pollution.
Tobacco--Physiological effect.
Tobacco--Toxicology.
Toxicity testing.
Harvard subject headings:
Environmental health
Health risk assessment
Tobacco smoke pollution.
Tobacco--Physiological effect
Tobacco--Toxicology
Toxicity testing.
Princeton subject headings:
Environmental health.
Health risk assessment.
Tobacco smoke pollution.
Tobacco--Physiological effect.
Tobacco--Toxicology.
Toxicity testing.