1. Department of Clinical Medicine, Anaesthesiology and Intensive Care, Lund University, Lund, Sweden
2. Kristianstad Central Hospital, Anaesthesia and Intensive Care, Kristianstad, Sweden
3. Skåne University Hospital, Intensive and Perioperative Care, Lund, Sweden
4. Skåne University Hospital, Intensive and Perioperative Care, Malmö, Sweden