Quantitative assessment of environmental pollution by cancerogenic substances: one stage in the epidemiological study of tumours.
D000397:Air Pollution / Q000032:analysis*; D001336:Automobiles; D001580:Benzopyrenes / Q000032:analysis*; D004781:Environmental Exposure; D004812:Epidemiologic Methods; D006801:Humans; D009031:Moscow; D012621:Seasons
D001580:Benzopyrenes