1. Bone Marrow Transplant Unit; Beatson Oncology Centre; Gartnavel Hospital; Glasgow; UK
2. Department of Bone Marrow Transplantation; Great Ormond Street Hospital; London; UK
3. Department of Haematology; Bristol Royal Hospital for Children; Bristol; UK
4. Department of Haematology; Freeman Road Hospital; Newcastle; UK
5. Department of Haematology; University Hospital Birmingham; Birmingham; UK
6. Department of Dermatology; University Hospital Birmingham; Birmingham; UK
7. Department of Haematology; Rotherham General Hospital; Rotherham; UK
8. Paediatric Liver Service and Institute of Liver Studies; King's College Hospital; London; UK
9. Section of Haemato-oncology; The Royal Marsden NHS Foundation Trust; London; UK