title: Alpha-1 antitrypsin deficiency in chronic obstructive pulmonary disease.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D005779:Immunodiffusion; D008173:Lung Diseases, Obstructive / Q000097:blood*; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D000515:alpha 1-Antitrypsin / Q000032:analysis; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin