1 Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, United Kingdom.
2 Department of Anesthesiology and Operative Intensive Care Medicine, Charité Campus Mitte and Campus Virchow Klinikum, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
3 Department of Anesthesiology, Ernst von Bergmann Hospital Bad Belzig, Bad Belzig Germany.
4 Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus, Denmark.
5 Department of Clinical Medicine, Aarhus University, Denmark.
6 Department of Medicine, Randers Regional Hospital, Randers, Denmark.
7 Department of Anaesthesiology and Intensive Care, Randers Regional Hospital, Randers, Denmark.
8 Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, USA.
9 Emergency Medicine Department, The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom.