1. Department of Clinical Haematology Oxford University Hospitals NHS Foundation Trust Oxford UK
2. Radcliffe Department of Medicine University of Oxford Oxford UK
3. NHS Blood and Transplant John Radcliffe Hospital Oxford UK
4. NHS Blood and Transplant Clinical Trials Unit Cambridge UK
5. NHS Blood and Transplant Clinical Trials Unit Bristol UK
6. Department of Critical Care Oxford University Hospitals NHS Foundation Trust Oxford UK
7. Nuffield Department of Clinical Neurosciences University of Oxford Oxford UK
8. Department of Critical Care Royal Berkshire Hospital Reading UK
9. Department of Critical Care University Hospital of Wales Cardiff UK