Chicago air pollution study. SO2 levels and acute illness in patients with chronic bronchopulmonary disease.
D000328:Adult; D000368:Aged; D000397:Air Pollution / Q000032:analysis*; D001249:Asthma / Q000453:epidemiology*; D001991:Bronchitis / Q000453:epidemiology*; D002641:Chicago; D004781:Environmental Exposure; D004782:Environmental Health; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012907:Smoking; D013458:Sulfur Dioxide / Q000032:analysis*; D013997:Time Factors
D013458:Sulfur Dioxide