[1] ASKLEPIOS Klin St Georg, Hamburg, Germany
[2] EBMT, Barcelona, Spain
[3] NPH Hosp, Nort W London NHS Trust, London, England
[4] Hop Necker Enfants Malad, Paris, France
[5] Univ Hosp, Freiburg, Germany
[6] Hosp U Marques de Valdecilla, Serv Hematol Hemoterapiea, Santander, Spain
[7] Univ Barcelona, Hosp Clin, Barcelona, Spain
[8] Hop St Louis, Haematol BMT, Paris, France
[9] Hosp Santa Creu & Sant Pau, Clin Hematol Div, Barcelona, Spain