[1] Newcastle University,Population Health Sciences Institute, Faculty of Medical Sciences
[2] Teesside University,School of Health and Social Care
[3] North East Ambulance Service NHS Foundation Trust,Medical Sciences Division, Oxford Academic Health Science Network
[4] University of Oxford,undefined
[5] and Oxford University Hospitals NHS Foundation Trust,undefined
[6] Newcastle upon Tyne Hospitals NHS Foundation Trust,undefined
[7] Northumbria Healthcare NHS Foundation Trust,undefined