Marcelo Fernandez-Vina, PhD^1*, John Klein, PhD^2*, Michael D Haagenson, MS^3*, Stephen R Spellman, MS^4*, Stephanie J. Lee, MD, MPH⁵, Claudio Anasetti, MD⁶, Lee Ann Baxter-Lowe, PhD⁷, Pedro Cano, MD^1*, Neal Flomenberg, MD, FACP^8*, Mary M. Horowitz, MD, MS², Carolyn K Hurley, PhD^9*, Machteld Oudshoorn, PhD^10*, Effie W Petersdorf, MD^5*, Michelle Setterholm^4*, Richard Champlin, MD¹ and Marcos De Lima, MD¹

¹University of Texas MD Anderson Cancer Center, Houston, TX
²Medical College of Wisconsin, Center for International Blood and Marrow Transplant Research, Milwaukee, WI
³Center for International Blood and Marrow Transplant Research, Minneapolis, MN
⁴National Marrow Donor Program, Minneapolis, MN
⁵Fred Hutchinson Cancer Research Center, Seattle, WA
⁶H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
⁷University of California San Francisco, San Francisco, CA
⁸Thomas Jefferson University, Philadelphia, PA
⁹Georgetown University Medical Center, Washington, DC
¹⁰Europdonor Foundation, Leiden, Netherlands

Roberto Crocchiolo, M.D.^1*, Elisabetta Zino, M.D.^1*, Nicoletta Sacchi, Ph.D.^2*, Jessica Marcon, M.D.^1*, Simona Pollichieni, Ph.D.^2*, Rosi Oneto, Ph.D.^1*, Giuseppe Bandini, M.D.^1*, Andrea Bacigalupo, MD³, Fabio Ciceri, M.D.^1* and Katharina Fleischhauer, M.D.^1*

¹GITMO, Genova, Italy
²IBMDR, Genova, Italy
³Hem-Onc, Ospedale S. Martino, Genova, Italy

Ann E Woolfrey, MD^1*, John Klein, PhD^2*, Michael D Haagenson, MS^3*, Stephen R Spellman, MS^4*, Minoo Battiwalla, MD⁵, James L. Gajewski, MD⁶, Gregory A. Hale, MD^7*, John Horan, MD, MPH^8*, Carolyn K Hurley, PhD^9*, Craig Kollman, PhD^10*, Susana Marino, MD, PhD^11*, Machteld Oudshoorn, PhD^12*, Effie W Petersdorf, MD^1*, Olle Ringdén, MD, PhD^13*, Michelle Setterholm^4* and Stephanie J. Lee, MD, MPH¹

¹Fred Hutchinson Cancer Research Center, Seattle, WA
²Medical College of Wisconsin, Milwaukee, WI
³CIBMTR, Minneapolis, MN
⁴National Marrow Donor Program, Minneapolis, MN
⁵Roswell Park Cancer Institute, Buffalo, NY
⁶Fox Chase Temple BMT Program, Philadelphia, PA
⁷St. Jude Children's Research Hospital, Memphis, TN
⁸Emory School of Medicine/Children's Healthcare of Atlanta, Atlanta, GA
⁹Georgetown University Medical Center, Washington, DC
¹⁰Jaeb Center for Health Research, Tampa, FL
¹¹University of Chicago Medical Center, Chicago, IL
¹²Europdonor Foundation, Leiden, NL.
¹³Karolinska University Hospital Huddinge, Stockholm, Sweden

Charles F. Craddock, BM, MRCP, MRCPath¹, Myriam Labopin^2*, J.ürgen Finke³, Gerhard Ehninger, MD⁴, Donald Bunjes^5*, Hans-Jochem Kolb^6*, Hildegard Greinix^7*, Axel Zander^8*, Emmanuelle Polge^2*, Christoph Schmid^6*, Dietrich Beelen^9* and Vanderson Rocha, ASH, member^10*

¹Center for Clinical Hematology, Birmingham, ARRAY(0xc83fd08)
²EBMT Paris Office, Paris, France
³Hematology/Oncology, University Medical Center Freiburg, Freiburg, Germany
⁴Universitatsklinikum Carl Gustav Carus, Dresden, Germany
⁵Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
⁶Department of Medicine, University of Munich
⁷Mediziniache University
⁸Haematology, University Hospital Eppendorf, Hamburg, Germany
⁹Department of Bone Marrow Transplantation, University Hospital Essen
¹⁰BMT unit, Hopital Saint Louis APHP and Université Paris VII, Paris, France

Peter Dreger, MD^1*, Stephan Stilgenbauer, MD, PhD², Sebastian Boettcher, MD^3*, Matthias Ritgen^3*, Sascha Dietrich^1*, Donald Bunjes, MD^2*, Dietrich Wilhelm Beelen, MD^4*, Sandra Cohen, MD, FRCP(C)⁵, Ute Hegenbart^1*, Joerg Schubert, MD^6*, Michael Stadler, MD^7*, Bertram Glass, MD, PhD^8*, Andreas Burchert, MD⁹, Lutz Uharek^10*, Michael Hallek¹¹, Michael Kneba, MD, PhD^3*, Norbert Schmitz, MD^8* and Hartmut Döhner²

¹Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
²Internal Medicine III, University of Ulm, Ulm, Germany
³Department of Internal Medicine II, University of Schleswig-Holstein, Kiel, Germany
⁴KMT Unit, University, Essen, Germany
⁵Maisonneuve Rosemont Hospital, Montreal, QC, Canada
⁶Internal Medicine I, Saarland University Medical School, Homburg/Saar, Germany
⁷Hematology & Oncology, Medical Center University of Hannover, Hannover, Germany
⁸Hematology and Stem Cell Transplantation, ASKLEPIOS Klinik St. Georg, Hamburg, Germany
⁹Hem./Onc./Immunology, University of Marburg, Marburg, Germany
¹⁰Medical Clinic III - Hematology and Oncology, Charité University Medicine Berlin, Germany
¹¹Dept. of Internal Med. I, University of Cologne, Cologne, Germany

Mauricette Michallet, MD, PhD¹, Quoc Hung Le, MD^1*, Peter Dreger^2*, Mohamad Sobh, PhD^1*, Dietger Niederwieser, MD^3*, Vladimir Koza, MD^4*, Tapani Ruutu⁵, Nigel H. Russell, MD⁶, Leo Verdonck^7*, Donald Milligan, MD, MBChB⁸, Nathalie Dhedin^9*, Tomas Kozak, MD, PhD^10*, Marc Boogaerts, MD, PhD¹¹, Juergen Finke¹², Nathalie Tedone^1*, Anja Van biezen^13*, Ronald Brand^14* and Theo de Witte on behalfhe European Group for Blood and Marrow Transplantation^15*

¹Hematology, Hopital Edouard Herriot, Lyon, Cedex 03, France
²Internal Medicine V, University Hospital Heidelberg, Heidelberg, Germany
³University of Leipzig, Leipzig, Germany
⁴Dept. of Hematology and Oncology, University Hospital Pilsen, Pilsen, Czech Republic
⁵Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland
⁶Centre for Clinical Haematology, Nottingham University Hospital, Nottingham, ARRAY(0xc1c3fa4)
⁷Haematology, University Medical Centre, Utrecht, Netherlands
⁸Dept. of Hematology, Birmingham Heartlands Hospital, Birmingham, ARRAY(0xc1edb84)
⁹Service d'Hématologie Clinique, Hôpital Pitié-Salpêtrière, Paris, France
¹⁰Department Of Clinical Hematology,, University Hospital Kralovske Vinohrady, Prague, Czech Republic
¹¹Hematology, U.Z. Gasthuisberg, Leuven, Belgium
¹²Dept. of Hematology/Oncology, University Medical Center Freiburg, Germany
¹³CLWP, Leiden
¹⁴CLWP, Leiden, Netherlands
¹⁵UMC St Radboud, Nijmegen, Netherlands

André Schrauder^1*, Martin Schrappe¹, Arend Stackelberg^2*, Peter Bader^3*, Wolfgang Holter^4*, Rupert Handgretinger^5*, Wolfram Ebell^6*, Dagmar Dilloo⁷, Tayfun Güngör^8*, Monika Fuehrer^9*, Hartmut Kabisch^10*, Martin Zimmermann^11*, Ulrike Poetschger^12*, Karl-Walter Sykora^11* and Christina Peters^13*

¹Pediatrics, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
²Department of Pediatric Oncology/Hematology, Charité - Medical University, Berlin, Germany
³Pediatric Hematology/Oncology, Johann Wolfgang Goethe University, Frankfurt, Germany
⁴Pediatric Hematology/Oncology, University Erlangen, Erlangen, Germany
⁵Pediatric Hematology, University Clinic Tuebingen, Tuebingen, Germany
⁶Pediatric Stem Cell Transplantation, Charite Campus Virchow, Berlin, Germany
⁷Heinrich-Heine University, Dusseldorf, Germany
⁸Pediatric Hospital, University Zuerich, Zuerich, Switzerland
⁹Pediatric Hematology/Oncology, University Clinic Munich, Munich, Germany
¹⁰Pediatric Hematology Oncology, University Hospital, Hamburg, Germany
¹¹Pediatric Hematology/Oncology, Medical School Hannover, Hannover, Germany
¹²Children Cancer Research Institute, Vienna, Austria
¹³St. Anna Children's Hospital, Vienna, Austria

Maurizio Aricò, MD¹, Martin Schrappe, MD², Stephen Hunger, MD³, William L. Carroll, MD⁴, Valentino Conter, MD^5*, Paola Di Lorenzo^6*, Atsushi Manabe, MD, PhD⁷, Vaskar Saha^8*, Andre Baruchel, MD⁹, Kim Vettenranta, MD, PD¹⁰, Masahiro Tsuchida¹¹, Yves Benoit^12*, Rob Pieters, MD, PhD¹³, Gabriele Escherich^14*, Lewis B. Silverman, MD¹⁵, Ching-Hon Pui, MD¹⁶ and Maria Grazia Valsecchi^17*

¹Pediatric Hematology Oncology, Azienda Ospedaliero-Universitaria Meyer, Florence, Italy, Florence, Italy
²Pediatrics, University Medical Center, Kiel, Germany
³Pediatric Heme/Onc/BMT, Univ of Colorado College of Medicine, Aurora, CO
⁴NYU School of Medicine, New York, NY
⁵Department of Pediatrics, University of Milano-Bicocca, Ospedale S. Gerardo, Monza, Italy
⁶Dept of Clinical and Preventive Medicine, Universita' Milano-Bicocca, Monza, Italy
⁷Tokyo Children's Cancer Study Group, Japan
⁸Children's Cancer and Leukaemia Group
⁹Dept. of Pediatric Hematology, Hopital Saint Louis, Paris, France
¹⁰University of Helsinki Children's Hosp., Helsinki, Finland
¹¹Dept. of Pediatrics, Ibaraki Children's Hospital, Mito, Japan
¹²European Organisation for Research and Treatment of Cancer, France
¹³Dept. of Pediatric Hem./Onc., Erasmus MC, Rotterdam, Netherlands
¹⁴Universitätsklinikum Hamburg-Eppendorf, Germany
¹⁵Pediatric Oncology, Dana-Farber Cancer Inst., Boston, MA
¹⁶Dept. of Onc., St. Jude Children's Rsch./Hosp., Memphis, TN
¹⁷Dept of Clinical and Preventive Medicine, Università Milano Bicocca, for the International Childhood Acute Lymphoblastic Leukemia Study Group, Monza, Italy