1. Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany;
2. Unité d’Immuno-Hématologie et Rhumatologie Pédiatriques, Hôpital Necker Enfants Malades, Assistance Publique–Hôpitaux de Paris, Paris, France;
3. Imagine Institute, Université Paris Descartes–Sorbonne Paris Cité, INSERM UMR 1163, Paris, France;
4. Institute for Transfusion Medicine, Ulm University, Ulm, Germany; and
5. Division of Allergy, Immunology and Blood and Marrow Transplant, Benioff Children’s Hospital, University of California, San Francisco, San Francisco, CA