1. University of Padova, Padova, Italy
2. Pediatric Hematology, Oncology and Stem Cell Transplant Division, Department of Woman’s and Child’s Health, University-Hospital of Padova, Padova, Italy
3. Pediatric Intensive Care Unit, Department of Woman’s and Child’s Health, University-Hospital of Padova, Padova, Italy
4. Meyer Children’s Hospital IRCCS’, Firenze, Italy
5. Department of Public Health and Pediatrics, University of Torino, Torino, Italy