[1] UCL, Res Dept Hematol, London, England
[2] Univ Coll London Hosp, Dept Hematol, London, England
[3] UCL, Canc Res UK, London, England
[4] UCL, UCL Canc Inst, UCL Canc Trials Ctr, London, England
[5] Freeman Rd Hosp, Dept Haematol, Newcastle Upon Tyne, England
[6] Manchester Royal Infirm, Dept Haematol, Manchester, England
[7] Queen Elizabeth Hosp, Dept Haematol, Birmingham, England
[8] Queen Elizabeth Univ Hosp, Dept Haematol, Glasgow, Scotland
[9] Univ Hosp Bristol & Weston NHS Fdn Trusts, Dept Haematol, Bristol, England
[10] Southampton Gen Hosp, Dept Haematol, Southampton, England
[11] Kings Coll Hosp London, Dept Haematol, London, England
[12] Univ Coll London Hosp, Dept Virol, London, England
[13] UCL, Res Dept hematol, 72 Huntley St, London WC1E 6DD, England