title: II. Prospects for chemical treatment of emphysema. Introduction.
mesh_terms: D002986:Clinical Trials as Topic; D005541:Forced Expiratory Volume; D006801:Humans; D011480:Protease Inhibitors / Q000302:isolation & purification / Q000627:therapeutic use; D011656:Pulmonary Emphysema / Q000188:drug therapy*
chemical_list: D011480:Protease Inhibitors