1. Department of Biomedical Science and Human Oncology; Paediatric Unit University of Bari “A. Moro”; Bari Italy
2. Department of Basic and Medical Sciences; Neurosciences and Sense Organs, Section of Human Anatomy and Histology; University of Bari “A. Moro”; Bari Italy
3. Oncohaematology and Bone Marrow Transplantation Unit; Children's Hospital; Brescia Italy
4. Division of Paediatric Haematology; Bambino Gesù Children's and Research Hospital; Rome Italy
5. Paediatric Haematology-Oncology; Cagliari Hospital; Cagliari Italy
6. Division of Paediatric Oncology; A. Gemelli Hospital; Catholic University of Rome; Rome Italy
7. Angelo Bianchi Bonomi Haemophilia and Thrombosis Centre; Maggiore Hospital; IRCCS Cà Granda Foundation; Milan Italy