1. Stroke Research Group, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, United Kingdom
2. Swansea University Medical School, Swansea, Wales, United Kingdom
3. Institute of Health and Society, Newcastle University, Newcastle upon Tyne, United Kingdom
4. Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
5. Newcastle Clinical Trials Unit, Newcastle University, Newcastle upon Tyne, United Kingdom
6. North East Ambulance Service, Newcastle upon Tyne, United Kingdom
7. Newcastle upon Tyne Hospitals National Health Service Foundation Trust, Newcastle upon Tyne, United Kingdom
8. Medical Sciences Division, University of Oxford, Oxford, United Kingdom
9. Oxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom