Eves, Neil D Helium-hyperoxia, exercise, and respiratory mechanics in chronic obstructive pulmonary disease. [electronic resource] - American journal of respiratory and critical care medicine Oct 2006 - 763-71 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1073-449X Standard No.: 10.1164/rccm.200509-1533OC doi Subjects--Topical Terms: AgedAnalysis of VarianceCross-Over StudiesExercise--physiologyExercise Tolerance--drug effectsHelium--administration & dosageHumansLung Volume MeasurementsMaleMiddle AgedOxygen--administration & dosagePulmonary Disease, Chronic Obstructive--physiopathologyRespiratory Mechanics--drug effectsTidal Volume--drug effectsWork of Breathing--drug effects