1. Division of Hematology and Oncology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA
2. BMT & Cellular Therapy Program Medical College of Wisconsin Milwaukee Wisconsin USA
3. Division of Biostatistics Medical College of Wisconsin Milwaukee Wisconsin USA
4. Adult Bone Marrow Transplant Service, Cellular Therapy Service, Department of Medicine Memorial Sloan Kettering Cancer Center New York New York USA
5. Department of Oncology and Onco‐hematology University of Milan Milan Italy
6. David and Etta Jonas Center for Cellular Therapy University of Chicago Chicago Illinois USA
7. Harold C. Simmons Comprehensive Cancer Center University of Texas Southwestern Medical Center Dallas Texas USA
8. Clinical Research Division Fred Hutchinson Cancer Center Seattle Washington USA
9. Division of Hematology, Oncology and Transplantation University of Minnesota Minneapolis Minnesota USA
10. Division of Hematologic Malignancies and Cellular Therapy University of Kansas Cancer Center Kansas City Kansas USA
11. Division of Hematology and Medical Oncology Mayo Clinic Jacksonville Florida USA
12. Hematopoietic Cell Transplant and Cellular Therapy Program Massachusetts General Hospital – Harvard Medical School Boston Massachusetts USA