title: Airway changes in young smokers that may antedate chronic obstructive lung disease.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007958:Leukocyte Count; D008168:Lung / Q000166:cytology; D008173:Lung Diseases, Obstructive / Q000209:etiology* / Q000276:immunology; D008214:Lymphocytes / Q000276:immunology; D008264:Macrophages / Q000201:enzymology; D008297:Male; D012907:Smoking