1. Academic Haematology Unit, Blizard Institute of Cell and Molecular Science, Queen Mary University of London, London, United Kingdom;
2. Laboratoire de Thérapie Cellulaire, Institut Jean Godinot, Reims, France;
3. Inserm U976 and University Denis Diderot-Paris 7, Saint Louis Hospital, Paris, France; and
4. Department of Haemato-Oncology and
5. Institute of Cancer, Cancer Research UK, Queen Mary University of London and Barts and the London National Health Service (NHS) Trust, London, United Kingdom