1. Sheffield Teaching Hospitals NHS Trust, Sheffield, UK
2. Swansea Bay University Health Board, Swansea, UK
3. Newcastle upon Tyne Hospitals NHS Trust, Newcastle, UK
4. Doncaster and Bassetlaw NHS Foundation Trust, Doncaster, UK
5. Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
6. South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK
7. St James’s University Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK