title: What is (and what is not) a COPD exacerbation: thoughts from the new GOLD guidelines.
authors.affiliation: Academic Unit of Respiratory Medicine, Royal Free & University College Medical School, Rowland Hill Street, London NW3 2PF, UK. jrhurst@lineone.net
authors.forename: J R
authors.initials: JR
authors.lastname: Hurst
authors.forename: J A
authors.initials: JA
authors.lastname: Wedzicha
mesh_terms: D000208:Acute Disease; D006801:Humans; D017410:Practice Guidelines as Topic; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*