title: The natural history of air-flow obstruction in PiZ emphysema. Report of an NHLBI workshop.
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000150:complications*; D006801:Humans; D008875:Middle Aged; D010641:Phenotype; D011656:Pulmonary Emphysema / Q000150:complications / Q000503:physiopathology; D012907:Smoking; D000515:alpha 1-Antitrypsin / Q000235:genetics; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin