1. Research Unit EA4340, Versailles University, Paris-Saclay University, Boulogne, France;
2. Pathology Department, Ambroise Paré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Boulogne, France;
3. Division of Hematology/Oncology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada;
4. Pathology Department, Necker Hospital, Paris, France;
5. Department of Women’s and Children’s Health, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden;
6. Department of Internal Medicine and French Reference Center for Rare Auto-immune and Systemic Diseases, Institut E3M, AP-HP, Pitié-Salpêtrière Hospital, Paris, France;
7. Université Pierre et Marie Curie University Paris 6, Paris, France;
8. Pediatric Hematology, Trousseau Hospital, APHP, Paris, France;
9. Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain;
10. Department of Pediatrics, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH;
11. Leukemia Service, Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY;
12. Feigin Center, Texas Children’s Cancer Center, Houston, TX;
13. Pathology Department, Pitié-Salpétrière Hospital, Paris, France;
14. Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY;
15. Necker Enfants Malades Hospital, AP-HP, Paris, France;
16. Institut Imagine, Sorbonne Paris Cité, Université Paris Descartes, Paris, France;
17. Division of Clínical Immunology, Hospital General Universitario and Health Research Institute “Gregorio Marañón,” Madrid, Spain;
18. Childhood Cancer Research Unit, Department of Women’s and Children’s Health, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden;
19. Department of Investigational Cancer Therapeutics (Phase I Clinical Trials Program), The University of Texas MD Anderson Cancer Center, Houston, TX;
20. Mount Sinai School of Medicine, New York, NY;
21. Pathology Department, University of Pittsburgh School of Medicine, Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA;
22. Dana-Farber Cancer Institute, Boston, MA;
23. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA;
24. Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA;
25. Division of Pulmonary, Saint Louis Hospital, Paris, France;
26. Division of Pulmonary and Critical Care Medicine, Mayo Clinic College of Medicine, Rochester, MN; and
27. Clarient Pathology Services, Aliso Viejo, CA