1. Centre for Anaesthesiological Research, Department of Anaesthesiology Zealand University Hospital Køge Denmark
2. Department of Anaesthesiology Copenhagen University Hospital – North Zealand Hillerød Denmark
3. Copenhagen Trial Unit, Centre for Clinical Intervention Research Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
4. Department of Regional Health Research, The Faculty of Health Sciences University of Southern Denmark Odense Denmark
5. Department of Paediatric and Obstetric Anaesthesia, Juliane Marie Centre Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
6. Department of Clinical Medicine Copenhagen University Copenhagen Denmark
7. Department of Anaesthesiology and Intensive Care Aalborg University Hospital Aalborg Denmark
8. Department of Clinical Medicine, Faculty of Medicine Aalborg University Aalborg Denmark
9. Research Centre of Anaesthesiology and Intensive Care Medicine, Department of Anaesthesiology Næstved‐Slagelse‐Ringsted Hospital Slagelse Denmark
10. Department of Anaesthesia and Intensive Care Copenhagen University Hospital ‐ Bispebjerg and Frederiksberg Copenhagen Denmark
11. Herlev Anaesthesia Critical and Emergency Care Science Unit, Department of Anaesthesiology Copenhagen University Hospital – Herlev and Gentofte Herlev Denmark
12. Cochrane Anaesthesia Group and Cochrane Emergency and Critical Care Group Copenhagen Denmark
13. Department of Anaesthesiology Intensive Care University Hospital of Southern Denmark Kolding Denmark
14. Department of Anaesthesiology and Intensive Care Aarhus University Hospital Aarhus Denmark
15. Department of Clinical Medicine Aarhus University Aarhus Denmark
16. Department of Neuroanaesthesiology, The Neuroscience Centre Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
17. Department of Cardiothoracic‐ and Vascular Surgery, Anaesthesia Section Aarhus University Hospital Aarhus Denmark
18. Department of Anaesthesia, Centre of Head and Orthopedics Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
19. Department of Anaesthesia and Intensive Care Medicine Zealand University Hospital Roskilde Denmark