title: [Epidemiological problems concerning small airway obstructions caused by air pollution].
mesh_terms: D000293:Adolescent; D000328:Adult; D000397:Air Pollution; D000818:Animals; D002648:Child; D006168:Guinea Pigs; D000882:Haplorhini; D006801:Humans; D007564:Japan; D008173:Lung Diseases, Obstructive / Q000139:chemically induced / Q000453:epidemiology*; D051379:Mice; D009589:Nitrogen Oxides / Q000633:toxicity; D010083:Oxidants, Photochemical / Q000633:toxicity; D051381:Rats; D012129:Respiratory Function Tests; D014481:United States
chemical_list: D009589:Nitrogen Oxides; D010083:Oxidants, Photochemical