1. Pediatric Hematology/Oncology; Fondazione IRCCS Policlinico S. Matteo; Pavia Italy
2. Nephrology, Dialysis and Transplantation Unit; G. Gaslini Institute; Genova Italy
3. Clinical Nephrology Unit and Transplant Immunology Research Laboratory; Department of Internal Medicine - DIMI; University of Genova; Genova Italy
4. Transplantation Immunology; Fondazione Ca' Granda; Ospedale Maggiore Policlinico; Milano Italy
5. Vascular and Endovascular Unit and Kidney Transplant Surgery Unit; University of Genova; IRCCS San Martino University Hospital IST; Genova Italy
6. Biometry and Statistics Service; Fondazione IRCCS Policlinico S. Matteo; Pavia Italy