title: Serum alpha-1 antitrypsin in chronic obstructive lung disease.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000201:enzymology*; D008297:Male; D000515:alpha 1-Antitrypsin / Q000235:genetics / Q000378:metabolism*
chemical_list: D000515:alpha 1-Antitrypsin