1. Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust and Department of Oncology; University of Sheffield; Sheffield; UK
2. BSBMT Data Registry; Guy's Hospital; London; UK
3. Leeds Teaching Hospitals NHS Trust; London; UK
4. Great Ormond Street Hospital NHS Trust; London; UK
5. Royal Liverpool University Hospital; Liverpool; UK
6. Guy's & St Thomas' NHS Foundation Trust (Kings Healthcare Partners); London; UK
7. Newcastle upon Tyne Hospitals NHS Foundation Trust; Newcastle upon Tyne; UK
8. Royal Free Hospital; London; UK
9. Nottingham University Hospitals NHS Trust; Nottingham; UK