1. 1Pediatric Hematology, Oncology and Stem Cell Transplant Division, Maternal and Child Health Department, University of Padua, Padua, Italy
2. 2Pediatric Onco-Hematology, Stem Cell Transplant and Gene Therapy Laboratory, Istituto di Ricerca Pediatrica, Città della Speranza, Padua, Italy
3. 3St. Anna Children’s Cancer Research Institute, Vienna, Austria
4. 4Tettamanti Center, IRCCS San Gerardo dei Tintori, Monza, Italy
5. 5Department of Internal Medicine I, Hematology Laboratory, University Medical Center Schleswig-Holstein, Kiel, Germany
6. 6Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
7. 7School of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy
8. 8Hannover Medical School, Hannover, Germany
9. 9Department of Pediatric Oncology/Hematology, Charité Universitätsmedizin, Berlin, Germany
10. 10Division of Oncology and Children’s Research Center, University Children’s Hospital, University of Zurich, Zurich, Switzerland
11. 11Immune Phenotype Laboratory, Department of Hematology-Oncology, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
12. 12Department of Pediatrics, University Medical Center Schleswig-Holstein, Kiel, Germany
13. 13Department of Oncology, Hematology and Cellular Therapy, Santobono-Pausilipon Children’s Hospital, Naples, Italy
14. 14Pediatric Onco-Hematology, City of Science and Health of Turin, Regina Margherita Children’s Hospital, Turin, Italy
15. 15Pediatrics, IRCCS San Gerardo dei Tintori, Monza, Italy
16. 16Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, Istituto di Ricovero e Cura a Carattere Scientifico Bambino Gesù Children's Hospital, Rome, Italy
17. 17Department of Health Science and Public Health, Catholic University of the Sacred Heart, Rome, Italy
18. 18St. Anna Children’s Hospital, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria