title: In reply.
authors.affiliation: Innsbruck Medical University, MUI, Innsbruck, Austria (A.T.K.). axel.kleinsasser@i-med.ac.at.
authors.forename: Axel T
authors.initials: AT
authors.lastname: Kleinsasser
authors.forename: Knotzer
authors.initials: K
authors.lastname: Hans
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010100:Oxygen / Q000008:administration & dosage*; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology* / Q000601:surgery*; D011659:Pulmonary Gas Exchange / Q000502:physiology*
chemical_list: D010100:Oxygen