1. Department of Anesthesia; Akershus University Hospital; Lørenskog Norway
2. Institute of Clinical Medicine; University of Oslo; Oslo Norway
3. Department of Research and Development; Division of Emergencies and Critical Care; Oslo University Hospital; Nydalen Oslo Norway
4. Department of Clinical Pharmacology; St. Olav's University Hospital; Trondheim Norway
5. Department of Clinical and Molecular Medicine; Norwegian University of Science and Technology; Trondheim Norway