title: Clinical value of assessment of acute reversibility of airways obstruction in patients with COPD.
authors.forename: W A
authors.initials: WA
authors.lastname: Speir
mesh_terms: D000402:Airway Obstruction / Q000175:diagnosis*; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications* / Q000175:diagnosis