title: National Emphysema Treatment Trial: the state-of-the-art of the evaluation and treatment of emphysema. Introduction.
authors.forename: Gerard J
authors.initials: GJ
authors.lastname: Criner
authors.forename: Alice L
authors.initials: AL
authors.lastname: Sternberg
mesh_terms: D006801:Humans; D015337:Multicenter Studies as Topic; D017063:Outcome Assessment, Health Care; D011013:Pneumonectomy; D011656:Pulmonary Emphysema / Q000175:diagnosis* / Q000601:surgery*; D016032:Randomized Controlled Trials as Topic; D014481:United States