[1] Hosp La Fe, Dept Hematol, Valencia, Spain
[2] EBMT Stat Unit, Leiden, Netherlands
[3] Kings Coll Hosp NHS, Dept Haematol Med, London, England
[4] Fundacja Na Ratunek Dzieciom Choroba Nowotworowa, Wroclaw, Poland
[5] Leiden Univ Hosp, Leiden, Netherlands
[6] First State Pavlov Med Univ St Petersburg, Raisa Gorbacheva Mem Res Inst Paediat Oncol Hemat, St Petersburg, Russia
[7] Newcastle Univ, Northern Ctr Bone Marrow Transplantat, Newcastle Upon Tyne, Tyne & Wear, England
[8] Royal Manchester Childrens Hosp, Manchester, Lancs, England
[9] Univ Hosp Bristol, Bristol, Avon, England
[10] Royal Marsden Hosp, London, England
[11] Rigshosp, Copenhagen, Denmark
[12] Yorkshire Blood & Marrow Transplant Program, Leeds, W Yorkshire, England
[13] King Hussein Canc Ctr Adult BMT Program, Amman, Jordan
[14] Russian Federat Childrens Res Hosp, Moscow, Russia
[15] Univ Hosp Basel, Basel, Switzerland
[16] Karolinska Inst, Dept Cellular Therapy & Allogene Stem Cell Transp, Stockholm, Sweden
[17] Univ Hosp, Stockholm, Sweden
[18] Helsinki Univ Cent Hosp, Hosp Children & Adolescent, Helsinki, Finland
[19] Univ Coll London Hosp NHS Fdn Trust, London, England
[20] Oslo Univ Hosp, Sect Stem Cell Transplantat, Clin Canc Med, Rikshosp,Hematol Dept, Oslo, Norway
[21] Manchester Royal Infirm, Dept Clin Haematol, Manchester, Lancs, England
[22] Azienda Sanit Univ Integrata Udine, Hematol, Udine, Italy
[23] Hop Univ Bruxelles HUB, Inst Jules Bordet, Dept Hematol, Brussels, Belgium
[24] Kings Coll Hosp London, Dept Haematol Med, London, England
[25] Univ Naples Federico II, Avellino, Italy
[26] Hop St Louis, Paris, France