title: Variable loss of lung function in COPD.
authors: Peter
authors: P
authors: Burney
mesh_terms: D015415:Biomarkers / Q000097:blood*; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*
chemical_list: D015415:Biomarkers