1. Immunoregulation Laboratory, MRC Centre for Transplantation, Guy's Hospital, King's College London, London SE1 9RT, U.K.
2. NIHR Biomedical Research Centre, Guy's & St Thomas' NHS Foundation Trust & King's College London, London SE1 9RT, U.K.
3. CAR Mechanics Group, Department of Research Oncology, Guy's Hospital, King's College London, London SE1 9RT, U.K.
4. School of Health, Sport and Bioscience, University of East London, Stratford Campus, Water Lane, London E15 4LZ, U.K.