title: Alpha 1 antitrypsin in chronic obstructive pulmonary disease (COPD).
mesh_terms: D003371:Cough / Q000209:etiology; D004417:Dyspnea / Q000209:etiology; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications* / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D019896:alpha 1-Antitrypsin Deficiency