title: Alveolar-arterial oxygen tension difference: an inaccurate estimate of pulmonary function with variable oxygen supplementation.
mesh_terms: D006801:Humans; D008433:Mathematics; D010100:Oxygen / Q000097:blood*; D010102:Oxygen Inhalation Therapy; D010313:Partial Pressure; D011650:Pulmonary Alveoli; D011659:Pulmonary Gas Exchange
chemical_list: D010100:Oxygen