1. Department of Dermatology; University Hospital Birmingham; Birmingham
2. Department of Haematology; Bristol Royal Hospital for Children; Bristol
3. Bone Marrow Transplant Unit; Beatson Oncology Centre; Gartnavel Hospital; Glasgow
4. Department of Bone Marrow Transplantation; Great Ormond Street Hospital; London
5. Department of Haematology; Freeman Road Hospital; Newcastle
6. Department of Haematology; University Hospital Birmingham; Birmingham
7. Department of Haematology; Rotherham General Hospital; Rotherham
8. Department of Respiratory Medicine; Royal Brompton Hospital; London
9. University College London/Institute of Opthalmology; Moorfields Eye Hospital; London
10. Department of Oral Medicine; Barts and the London NHS Trust; London
11. Department of Medical Microbiology; Royal Free Hampstead NHS Trust; London
12. Department of Medicine; The Royal Marsden NHS Foundation Trust; London
13. Paediatric Endocrine Unit; St George's Hospital; London
14. Paediatric Liver Service & Institute of Liver Studies; King's College Hospital; London
15. Section of Haemato-oncology; The Royal Marsden NHS Foundation Trust; London