Alpha 1-antitrypsin, emphysema and smoking.
D006801:Humans; D007962:Leukocytes / Q000378:metabolism; D010196:Pancreatic Elastase / Q000378:metabolism; D011656:Pulmonary Emphysema / Q000201:enzymology / Q000209:etiology*; D012907:Smoking; D019896:alpha 1-Antitrypsin Deficiency
D010196:Pancreatic Elastase