title: Course and prognosis of patients with chronic airways obstruction.
mesh_terms: D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis* / Q000628:therapy; D011379:Prognosis; D011656:Pulmonary Emphysema / Q000175:diagnosis; D014797:Vital Capacity