1. Department of Pediatric Hematology and Oncology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Bambino Gesù Children's Hospital, Rome, Italy
2. Department of Medical, Oral and Biotechnological Sciences, G. d'Annunzio University, Chieti, Italy
3. Division of Hematology, Arthur G. James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
4. Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, University of Freiburg, Freiburg, Germany
5. Department of Pediatrics, “Lalla Seràgnoli” Hematology-Oncology Unit, University of Bologna, Bologna, Italy
6. Department of Woman and Child Health, Haemato-Oncology Division, University of Padova, Azienda Ospedaliera di Padova, Padova, Italy
7. Department of Paediatric Haemato-Oncology, Santobono-Pausilipon Hospital, Napoli, Italy
8. Department of Paediatrics, Paediatric Unit 'F. Vecchio', University of Bari, Bari, Italy
9. Department of Paediatric Haematology and Oncology, Fondazione IRCCS Policlinico S. Matteo, University of Pavia, Pavia, Italy
10. Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, Columbus, OH, USA
11. Unit of General Pathology, Center of Excellence on Aging and Translational Medicine (CeSI-MeT), G. d'Annunzio University, Chieti, Italy