title: The pathogenesis of emphysema--twenty years of progress.
mesh_terms: D000818:Animals; D004285:Dogs; D004547:Elastic Tissue; D004731:Endotoxins / Q000009:adverse effects; D004926:Escherichia coli / Q000276:immunology; D005796:Genes; D006801:Humans; D008264:Macrophages / Q000201:enzymology; D009504:Neutrophils / Q000201:enzymology; D010196:Pancreatic Elastase / Q000378:metabolism; D010206:Papain / Q000378:metabolism; D011480:Protease Inhibitors / Q000172:deficiency*; D011656:Pulmonary Emphysema / Q000209:etiology*; D012907:Smoking; D000511:alpha-Macroglobulins / Q000378:metabolism
chemical_list: D004731:Endotoxins; D011480:Protease Inhibitors; D000511:alpha-Macroglobulins; D010196:Pancreatic Elastase; D010206:Papain