1. Department of Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX;
2. Department of Medicine, Center for International Blood and Marrow Transplant Research, Medical College of Wisconsin, Milwaukee, WI;
3. Division of Biostatistics, Institute for Health and Society, Medical College of Wisconsin, Milwaukee, WI;
4. Department of Hematology, IRCCS Azienda Ospedaliera Universitaria (AOU) San Martino—IST, Genoa, Italy;
5. Department of Medicine, Northside Hospital, Atlanta, GA;
6. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA;
7. Department of Medicine, University of Kansas Medical Center, Kansas City, KS;
8. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA;
9. Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Arthur C. James Cancer Hospital, Columbus, OH;
10. Experimental Transplantation and Immunobiology, Experimental Transplantation and Immunology Branch, National Cancer Institute, Bethesda, MD;
11. Department of Medicine – Hematology, Sidney Kimmel Cancer Center, Johns Hopkins University, Baltimore, MD;
12. Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA;
13. Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY;
14. Hematology-Oncology, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA;
15. Department of Medical Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL;
16. Division of Therapeutic Immunology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden;
17. Churchill Hospital, Oxford, United Kingdom;
18. Division of Hematology and Oncology, Washington University School of Medicine, Saint Louis, MO; and
19. Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Medical Center, Minneapolis, MN