1. Meyer Children’s University Hospital, Department of Health Sciences, University of Florence, Italy. sandra.trapani@unifi.it
2. Post-graduate School of Paediatrics, University of Florence, Italy.
3. Rheumatology Unit, Meyer Children's University Hospital, NEUROFARBA Department, University of Florence, Italy.
4. Liver Unit, Meyer Children's University Hospital, NEUROFARBA Department, University of Florence, Italy.