Pediatric Neurology Unit, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy. irene.toldo@unipd.it. Pediatric Neurology Unit, Department of Women's and Children's Health, University Hospital of Padua, Padua, Italy. Neuroradiology Unit, Department of Neurological Sciences, University Hospital of Padua, Padua, Italy. Neuroradiology, University of Salerno, Salerno, Italy. Unit of Molecular Neurogenetics, Foundation IRCCS Institute of Neurology 'Carlo Besta', Milan, Italy. Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.