title: Mucus hypersecretion, airways obstruction, and mortality from chronic lung disease.
mesh_terms: D000402:Airway Obstruction / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000401:mortality* / Q000503:physiopathology; D009093:Mucus / Q000378:metabolism*; D012129:Respiratory Function Tests; D012907:Smoking