title: Every new system generates new problem a priori.
authors.forename: Stefan
authors.initials: S
authors.lastname: Kostianev
authors.forename: Vladimir
authors.initials: V
authors.lastname: Hodgev
mesh_terms: D001784:Blood Gas Analysis; D006801:Humans; D011379:Prognosis; D029424:Pulmonary Disease, Chronic Obstructive / Q000097:blood / Q000175:diagnosis*; D015203:Reproducibility of Results