Austin, M Oxygen therapy in the pre-hospital setting for acute exacerbations of chronic obstructive pulmonary disease. [electronic resource] - The Cochrane database of systematic reviews Jul 2006 - CD005534 p. digital Publication Type: Journal Article; Review; Systematic Review ISSN: 1469-493X Standard No.: 10.1002/14651858.CD005534.pub2 doi Subjects--Topical Terms: Emergency Medical ServicesHumansOxygen Inhalation TherapyPulmonary Disease, Chronic Obstructive--therapyRandomized Controlled Trials as Topic