1 Department of Anesthesiology and Intensive Care, Helsingborg Hospital, Helsingborg, Sweden2Department of Clinical Sciences, Lund University, Lund, Sweden.
2 Adult Critical Care, Cardiff University Hospital, Cardiff, United Kingdom.
3 Department of Clinical Sciences, Lund University, Lund, Sweden4Department of Neurology and Rehabilitation Medicine, Skane University Hospital, Lund, Sweden.