1. Imperial College Healthcare NHS Trust, London, UK
2. Cambridgeshire Community Services NHS Trust, Huntingdon, UK
3. Chelsea and Westminster NHS Trust, London, UK
4. Guys and St Thomas Hospital NHS Trust, London, UK
5. Homerton University Hospitals NHS Trust, London, UK
6. Brighton and Sussex University Hospitals NHS Trust, Brighton, UK
7. Lewisham and Greenwich NHS Trust, London, UK
8. Central and Northwest London NHS Foundation Trust, London, UK
9. Barts Health NHS Trust, London, UK
10. Kings College NHS Foundation Trust, London, UK
11. University Hospitals Birmingham NHS Foundation Trust, Bradford, UK
12. Salamander Trust, London, UK
13. Bradford University Teaching Hospitals NHS Trust, Bradford, UK