1. Pediatric Oncohematology Department, Regina Margherita Children's Hospital, AOU Città Della Salute e Della Scienza di Torino, Turin, Italy.
2. Transition Unit for Childhood Cancer Survivors, AOU Città Della Salute e Della Scienza, Turin, Italy.
3. Department of Public Health and Paediatric Sciences, University of Torino, Turin, Italy.