title: Correlation of cigarette smoking with human serum antitrypsin activity.
mesh_terms: D006801:Humans; D008171:Lung Diseases / Q000097:blood; D012907:Smoking; D000515:alpha 1-Antitrypsin / Q000037:antagonists & inhibitors / Q000097:blood*
chemical_list: D000515:alpha 1-Antitrypsin