1. Department of Pediatrics; Pediatric Oncology and Haematology Unit “Lalla Seràgnoli”; Sant’ Orsola Malpighi Hospital; University of Bologna; Bologna Italy
2. Pediatric Onco-Hematology and Stem Cell Transplant Division; City of Health and Science; Regina Margherita Children's Hospital; Turin Italy
3. Pediatric Hematology-Oncology; Padua Italy
4. Department of Pediatric Hematology/Oncology and Stem Cell Transplantation; Bambino Gesù Children's Hospital; Rome Italy
5. Department of Paediatrics, Paediatric Haematology Oncology; Azienda Ospedaliera Universitaria Integrata; Verona Italy
6. Department of Medical and Surgical Sciences for Mothers, Children and Adults; Onco-hematology Pediatric Unit; University of Modena and Reggio Emilia; Modena Italy
7. Pediatric Onco-Hematology and Stem Cell Transplant Unit; S.Maria della Misericordia Hospital; Perugia Italy
8. Pediatric Onco-Hematology; Hospital of Parma; Parma Italy
9. Pediatric Hematology-Oncology; ARNAS Civico; Palermo Italy
10. Pediatric Hematology-Oncology; Institute for Maternal and Child Health - IRCCS Burlo Garofolo; Trieste Italy
11. Pediatric Hematology-Oncology; Bari Italy
12. Paediatric Haematology-Oncology; Ospedale Pediatrico Microcitemico; Cagliari Italy