title: Interactions of neutrophil elastase, serum trypsin inhibitory activity, and smoking history as risk factors for chronic obstructive pulmonary disease in patients with MM, MZ, and ZZ phenotypes for alpha1-antitrypsin.
mesh_terms: D006801:Humans; D008173:Lung Diseases, Obstructive / Q000097:blood / Q000209:etiology / Q000235:genetics*; D009504:Neutrophils / Q000201:enzymology; D010196:Pancreatic Elastase / Q000097:blood; D010641:Phenotype; D012907:Smoking / Q000150:complications*; D000515:alpha 1-Antitrypsin / Q000235:genetics*
chemical_list: D000515:alpha 1-Antitrypsin; D010196:Pancreatic Elastase