1. Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
2. South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK
3. Northumbria Healthcare NHS, Ashington, UK
4. Queen Elizabeth University Hospital, Glasgow, Glasgow, UK
5. Addenbrooke's Hospital, Cambridge, Cambridge, UK
6. Northern General Hospital, Sheffield, Sheffield, UK
7. University of Bristol, Bristol, UK
8. Wrightington Hospital, Wigan, Wigan, UK