Centre for Clinical research and Dept. of Surgery, Västerås, Region Västmanland, Sweden
Intensive Care Unit, Västerås Hospital, Västerås, Västmanland, Sweden
Lennart Edmark, Västerås, Sweden
Dep. of Anaesthesia and Intensive Care, Västerås, Region Västmanland, Sweden
Köping County Hospital, Köping, Västmanland, Sweden
Västmanlands sjukhus Köping, Köping, Västmanland, Sweden
Department of Anaesthesia and Intensive Care, Köping, Sweden