1 Department of Pediatric Emergency, Regina Margherita Children's Hospital, Città della Salute e della Scienza, Turin, Italy.
2 Department of Pediatric Emergency, Regina Margherita Children's Hospital, Città della Salute e della Scienza, Turin, Italy - ecastagno@cittadellasalute.to.it.
3 Department of Public Health and Pediatrics, University of Turin, Turin, Italy.
4 Department of Pediatric Nephrology, Regina Margherita Children's Hospital, Città della Salute e della Scienza, Turin, Italy.