1. Neuroscience Department, Children's Hospital A. Meyer—University of Florence, 50139 Florence, Italy
2. Unit of Neuroradiology
3. U.O.C. Bioingegneria e Ingegneria Clinica, Fondazione G. Monasterio CNR-Regione Toscana, 56124 Pisa, Italy
4. IRCCS Stella Maris Foundation, 56018 Calambrone, Pisa, Italy