COTES, J E Effect of oxygen on exercise ability in chronic respiratory insufficiency; use of portable apparatus. [electronic resource] - Lancet (London, England) Jun 1956 - 872-6 p. digital Publication Type: Journal Article ISSN: 0140-6736 Standard No.: 10.1016/s0140-6736(56)91341-1 doi Subjects--Topical Terms: ExerciseHumansOxygen--pharmacologyRespirationRespiratory Insufficiency