title: Different behaviour of expiratory p 32 O 2 , P 34 O 2  and PCO 2  curves in nitrogen, helium and argon.
mesh_terms: D001128:Argon; D002245:Carbon Dioxide; D006371:Helium; D006801:Humans; D009584:Nitrogen; D010100:Oxygen; D010103:Oxygen Isotopes; D011653:Pulmonary Diffusing Capacity; D012129:Respiratory Function Tests
chemical_list: D010103:Oxygen Isotopes; D002245:Carbon Dioxide; D006371:Helium; D001128:Argon; D009584:Nitrogen; D010100:Oxygen