title: Serum alpha-1-antitrypsin deficiency in COPD and normals.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005838:Genotype; D006801:Humans; D005779:Immunodiffusion; D008173:Lung Diseases, Obstructive / Q000201:enzymology* / Q000235:genetics; D008297:Male; D008875:Middle Aged; D000515:alpha 1-Antitrypsin / Q000032:analysis; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin