1. Division of Pediatric Hematology/Oncology Texas Children's Cancer Center Baylor College of Medicine Houston Texas USA
2. Department of Biostatistics Colleges of Medicine Public Health and Health Professions University of Florida Gainesville Florida USA
3. Department of Global Pediatric Medicine St Jude Children's Research Hospital Memphis Tennessee USA
4. Immunogen, Inc. Waltham Massachusetts USA
5. Division of Pediatric Oncology Children's National Medical Center, Washington, DC and the George Washington University School of Medicine and Health Sciences Washington District of Columbia USA
6. Division of Pediatric Hematology‐Oncology Medical College of Wisconsin Milwaukee Wisconsin USA
7. U.S. Army Medical Research and Materiel Command, Fort Detrick Frederick Maryland USA
8. Department of Pathology The Ohio State University Wexner School of Medicine Columbus Ohio USA
9. Department of Genetics University of Alabama at Birmingham Birmingham Alabama USA
10. Department of Pediatrics University of Texas Southwestern Medical Center Dallas Texas USA
11. Department of Pediatrics and the Center for Childhood Cancer Research Children's Hospital of Philadelphia and the Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
12. Department of Pediatrics New York University Langone Medical Center New York New York USA
13. Department of Pediatrics Benioff Children's Hospital and the Helen Diller Family Comprehensive Cancer Center University of California School of Medicine San Francisco California USA
14. Department of Pathology and Laboratory Medicine Children's Hospital of Los Angeles, University of Southern California Los Angeles California USA
15. Department of Pathology Johns Hopkins Medical Institutions Baltimore Maryland USA