1. Department of Medicine, Emergency and Urgent Care Research in Cambridge (EURECA), PACE Section, Cambridge University, Cambridge, UK
2. Blizard Institute, Queen Mary University of London, London, UK
3. Department of Research, Audit, Innovation, & Development (RAID), East Anglian Air Ambulance, Norwich, UK
4. Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine (Research and Clinical Innovation), Birmingham, UK