[1] Vrinnevi Hosp, Dept Anaesthesiol & Intens Care, Norrkoping, Sweden
[2] Linkoping Univ Hosp, Dept Emergency Med, Linkoping, Sweden
[3] Linkoping Univ Hosp, Dept Anaesthesiol & Intens care, Linkoping, Sweden
[4] Linkoping Univ, Dept Biomed & Clin Sci, Linkoping, Sweden
[5] Linkoping Univ, Ctr Disaster Med & Traumatol, Linkoping, Sweden
[6] Linkoping Univ, Dept Comp & Informat Sci, Linkoping, Sweden