1. Paediatric Onco-Haematology, Stem Cell Transplantation and Cellular Therapy Division; Regina Margherita Children's Hospital; Torino Italy
2. Department of Woman and Child Health; Haemato-Oncology Division; University of Padova; Azienda Ospedale Padova; Padova Italy
3. Department of Paediatric Haematology-Oncology; Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS); Bambino Gesù Children's Hospital; Roma Italy
4. Department of Paediatric Haematology; San Gerardo Hospital; Monza Italy
5. Department of Paediatric Haemato-Oncology; Santobono-Pausilipon Hospital; Napoli Italy
6. Paediatric Oncology and Haematology Unit “Lalla Seragnoli”; Department of Paediatrics; University of Bologna Sant'Orsola-Malpighi Hospital; Bologna Italy
7. University of Pavia; Pavia Italy