title: Passive smoking and chronic obstructive lung disease.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D014028:Tobacco Smoke Pollution
chemical_list: D014028:Tobacco Smoke Pollution