Hargreave, F E Asthma, COPD and bronchitis are just components of airway disease. [electronic resource] - The European respiratory journal Aug 2006 - 264-7 p. digital Publication Type: Editorial; Research Support, Non-U.S. Gov't; Review ISSN: 0903-1936 Standard No.: 10.1183/09031936.06.00056106 doi Subjects--Topical Terms: Asthma--classificationBronchitis--classificationHumansPulmonary Disease, Chronic Obstructive--classification