title: Travelling in time with COPD.
authors.forename: J R
authors.initials: JR
authors.lastname: Hurst
authors.forename: P M A
authors.initials: PM
authors.lastname: Calverley
mesh_terms: D035843:Biomedical Research / Q000639:trends; D001993:Bronchodilator Agents / Q000627:therapeutic use; D005938:Glucocorticoids / Q000627:therapeutic use; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D015272:Pulmonary Medicine / Q000639:trends
chemical_list: D001993:Bronchodilator Agents; D005938:Glucocorticoids