1. University of Leicester; NIHR Applied Research Collaboration East Midlands (ARC-EM) ORCID iD:, URL: https://orcid.org/0000-0002-9671-2162
2. University Hospitals of Leicester NHS Trust; NIHR Applied Research Collaboration East Midlands (ARC-EM) ORCID iD:, URL: https://orcid.org/0000-0002-6732-0864
3. University of Leicester ORCID iD:, URL: https://orcid.org/0000-0002-9284-9321
4. University Hospitals of Leicester NHS Trust
5. University of Leicester
6. University Hospitals of Leicester NHS Trust; NIHR Leicester Biomedical Research Centre ORCID iD:, URL: https://orcid.org/0000-0002-9987-9371
7. East Midlands Ambulance Service NHS Trust
8. East Midlands Ambulance Service NHS Trust; University of Lincoln ORCID iD:, URL: https://orcid.org/0000-0003-2484-8201
9. University of Leicester; NIHR Applied Research Collaboration East Midlands (ARC-EM) ORCID iD:, URL: https://orcid.org/0000-0003-2343-7099