1. Laboratory of Oncohematology, Department of Womens and Children's Health, University of Padova, Italy
2. Center of Biostatistics for Clinical Epidemiology, Department of Health Sciences, University of Milano-Bicocca, Monza, Italy
3. Centro Ricerca Tettamanti, University of Milano-Bicocca, Ospedale San Gerardo, Monza, Italy
4. Oncoematologia Pediatrica e Patologia della Coagulazione, Ospedale Regionale per le Microcitemie, Cagliari, Italy
5. Oncoematologia Pediatrica, Ospedale “Casa Solievo della Sofferenza”, San Giovanni Rotondo, Italy
6. U.O. Pediatria, Ospedale Papa Giovanni XXIII, Bergamo, Italy
7. Pediatric Department, University of Milano-Bicocca, Ospedale San Gerardo, Monza, Italy