1. North Bristol NHS Trust
2. MRC Clinical Trials Unit, London
3. University College London Medical School
4. Trial Unit, North Bristol NHS Trust
5. Gloucester NHS Trust
6. Homerton University Hospital NHS Trust
7. King's College Hospital NHS Foundation Trust
8. University College London
9. Chelsea and Westminster Hospital NHS Foundation Trust
10. Royal Free Hampstead NHS Trust
11. Mortimer Market Centre, London
12. Brighton and Sussex University Hospitals NHS Trust, Massachusetts
13. Imperial College Healthcare NHS Trust, London
14. Barts and The London NHS Trust
15. North Middlesex University Hospital NHS Trust, London
16. The Lothian University Hospitals NHS Trust, Edinburgh, United Kingdom