1. Department of Medicine and Health Sciences, Lund University, 223 62 Lund, Sweden
2. Department of Anaesthesiology, Surgery and Intensive Care, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
3. Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, 413 46 Gothenburg, Sweden
4. Department of Anestesiology and Critical Care, West Hospital, 442 34 Kungälv, Sweden
5. Department of Anaesthesiology and Intensive Care, Örebro University Hospital and School of Medical Sciences, Örebro University, 701 82 Örebro, Sweden