title: Enzymes and emphysema.
mesh_terms: D001991:Bronchitis; D006579:Heterozygote; D006801:Humans; D008661:Metabolism, Inborn Errors; D011656:Pulmonary Emphysema / Q000209:etiology*; D012907:Smoking / Q000503:physiopathology; D014361:Trypsin Inhibitors / Q000378:metabolism*
chemical_list: D014361:Trypsin Inhibitors