title: Understanding breathlessness in mild chronic obstructive pulmonary disease.
authors.forename: Peter
authors.initials: P
authors.lastname: Calverley
mesh_terms: D000368:Aged; D004417:Dyspnea / Q000209:etiology* / Q000503:physiopathology; D005541:Forced Expiratory Volume / Q000502:physiology; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications* / Q000503:physiopathology