1. Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA;
2. Department of Medicine, University of Washington School of Medicine, Seattle, WA;
3. Istituto di Ricovero e Cura a Carattere Scientifico Azienda Ospedaliera Universitaria San Martino, Genova, Italy;
4. Laboratoire d'Histocompatibilité et d'Immunogénétique, Etablissement Français du Sang Pays de Loire, Nantes, France;
5. University of Cape Town, Cape Town and South African Bone Marrow Registry, Cape Town, South Africa;
6. Universitätsklinikum Carl Gustav Carus, Dresden, Germany;
7. Department of Immunology, Oslo University Hospital, Oslo, Norway;
8. Department for Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria;
9. Cliniques St. Luc, Université Catholique de Louvain, Brussels, Belgium;
10. Center for International Blood and Marrow Transplant Research, Minneapolis, MN;
11. Center for International Blood and Marrow Transplant Research, Medical College of Wisconsin, Milwaukee, WI;
12. Memorial Sloan-Kettering Cancer Center, New York, NY;
13. University Hospital, Pilsen, Czech Republic;
14. Anthony Nolan Research Institute, The Royal Free Hampstead NHS Trust, London, United Kingdom;
15. Leiden University Medical Center and Europdonor Foundation, Leiden, The Netherlands;
16. Division of Therapeutic Immunology, Center for Allogeneic Stem Cell Transplantation, Karolinska University Hospital, Huddinge, Sweden;
17. Cancer Care Manitoba, University of Manitoba, Winnipeg, MB, Canada;
18. National Reference Laboratory for Histocompatibility, Department of Genetics and Laboratory Medicine, University Hospital Geneva, Geneva, Switzerland;
19. European Group for Blood and Marrow Transplantation and University of Perugia, Perugia, Italy;
20. Department of Clinical Immunology, Royal Perth Hospital, Perth, Australia;
21. Cancer and Inflammation Program, SAIC Frederick, Inc., Frederick National Laboratories for Cancer Research, Frederick, MD; and
22. Ragon Institute of the Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Boston, MA