1. School of Medicine; Cardiff University; University Hospital of Wales; Wales; UK
2. Royal Hospital for Sick Children; Glasgow; UK
3. The London School of Medicine and Dentistry; Royal London Hospital; Barts, Queen Mary University; London; UK
4. Great Ormond Street NHS Trust; London; UK
5. Hampshire Hospital NHS Foundation Trust; Basingstoke & North Hampshire Hospital; Basingstoke; UK
6. Royal Victoria Infirmary; Newcastle upon Tyne; UK
7. Birmingham Childrens' Hospital NHS Foundation Trust; Birmingham; UK
8. Central Manchester University Hospitals; Manchester; UK