1. Department of Hematology and Bone Marrow Transplant Vanderbilt University Medical Center Nashville TN USA
2. Department of Haematology for Adolescents and Young Adults Saint‐Louis Hospital Paris France
3. Department of Biostatistics Vanderbilt University School of Medicine Nashville TN USA
4. Department of Paediatrics St. Mary’s Hospital Imperial College London UK
5. Department of Pharmaceutical Services Vanderbilt University Medical Center Nashville TN USA
6. Department of Pediatrics Pediatric Hematology and Bone Marrow Transplant Vanderbilt Childrens Hospital Nashville TN USA
7. Department of Infectious Disease Vanderbilt University Medical Center Nashville TN USA