[1] Kings Coll Hosp London, Dept Haematol Med, London, England
[2] Natl Inst Hlth & Care Res & Wellcome Kings Res Fa, London, England
[3] Hosp Clin San Carlos, Hematol Serv, Madrid, Spain
[4] Hosp Beneficencia Portuguesa Sao Paulo, Sao Paulo, Brazil
[5] St Luc Univ Hosp, Dpt Haematol, Brussels, Belgium
[6] Osaka Univ, Grad Sch Med, Dept Hematol & Oncol, Fac Med, Suita, Osaka, Japan
[7] Genentech Inc, San Francisco, CA USA
[8] F Hoffmann Roche Ltd, Basel, Switzerland
[9] Univ Duisburg Essen, Univ Hosp Essen, Dept Hematol & Stem Cell Transplantat, Essen, Germany
[10] Univ Duisburg Essen, Univ Hosp Essen, Dept Hematol & Stem Cell Transplantat, West German Canc Ctr, Essen, Germany