1. The Centre for Clinical Research The University of Queensland Brisbane QLD Australia
2. Department of Anaesthesia York Teaching Hospitals NHS Foundation Trust York UK
3. Department of Anaesthesia James Cook University Hospital Middlesbrough UK
4. Department of Anaesthesia University Hospitals of North Tees and Hartlepool Stockton‐on‐Tees UK
5. Institute of Health and Society Newcastle University Newcastle UK
6. Department of Anaesthesia Northumbria Healthcare NHS Foundation Trust Northern Deanery UK
7. Academic Department of Military Surgery & Trauma Royal Center for Defence Medicine Birmingham UK