1. Vanderbilt University Medical Center Nashville Tennessee USA
2. Universitätsklinikum Heidelberg Heidelberg Germany
3. Center for International Blood and Marrow Transplant Research Medical College of Wisconsin Milwaukee Wisconsin USA
4. EBMT Leiden Study Unit Leiden The Netherlands
5. Division of Biostatistics, Institute for Health and Equity Medical College of Wisconsin Milwaukee Wisconsin USA
6. Department of Hematology Hospital Clínico Universitario Valencia Spain
7. Maria Skłodowska‐Curie National Research Institute of Oncology Gliwice Poland
8. Department of Haematology Trinity College Dublin, St. James's Hospital Dublin Ireland
9. UT Southwestern Medical Center Dallas Texas USA
10. Dana‐Farber Cancer Institute Boston Massachusetts USA
11. Moffitt Cancer Center Tampa Florida USA
12. Sarah Cannon Transplant and Cellular Therapy Program Methodist Hospital San Antonio Texas USA
13. Fred Hutchinson Cancer Research Center Seattle WA USA
14. City of Hope National Medical Center Duarte California USA
15. University of Texas MD Anderson Cancer Center Houston Texas USA
16. Mayo Clinic Jacksonville Florida USA
17. University College Hospital London UK
18. INSERM U1286, Infinite CHU de Lille, Univ Lille Lille France
19. Department of Medicine, CIBMTR® (Center for International Blood and Marrow Transplant Research) Medical College of Wisconsin Milwaukee Wisconsin USA