1. King's College London, Guy's & St Thomas' Hospital; Haematology; Guy's Hospital St Thomas' Street London UK SE1 9RT
2. Imperial College, London; Division of Paediatrics, Obstetrics and Gynaecology.; Chelsea & Westminster Hospital 369 Fulham Road London UK SW10 9NH
3. MRC Clinical Trials Unit; Division Without Portfolio; 222 Euston Road London UK NW1 2DA