[1] Aarhus Univ Hosp, Dept Anaesthesiol & Intens Care, DK-8000 Aarhus, Denmark
[2] Aarhus Univ Hosp, Res Lab Biochem Pathol, DK-8000 Aarhus, Denmark
[3] Reg Hosp Randers, Dept Anaesthesiol & Intens Care, Randers, Denmark
[4] Aarhus Univ Hosp, Dept Med 5, DK-8000 Aarhus, Denmark