title: Chronic mucus hypersecretion, exacerbations and natural history of COPD.
authors.affiliation: North West Lung Centre, Manchester, UK.
authors.forename: J
authors.initials: J
authors.lastname: Vestbo
mesh_terms: D029481:Bronchitis, Chronic / Q000503:physiopathology*; D005541:Forced Expiratory Volume; D006801:Humans; D009093:Mucus / Q000378:metabolism*; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications / Q000503:physiopathology*; D012008:Recurrence