[1] Queen Mary Univ London, Expt Canc Ctr, London, England
[2] Cleveland Clin, Cleveland, OH 44106 USA
[3] Harvard Univ, Sch Med, Boston, MA USA
[4] Univ Southampton, Southampton, Hants, England
[5] Hannover Med Sch, Clin Haematol Hemostasid Oncol & Stem Cell Transp, Hannover, Germany
[6] Beatson Inst, Glasgow, Lanark, Scotland