1. Autism Research and Treatment Centre Una Breccia Nel Muro, 00168 Rome, Italy
2. Department of Applied Clinical Sciences and Biotechnology, University of L’Aquila, 67100 L’Aquila, Italy
3. Department of Education, Psychology, Communication, University of Bari, 70121 Bari, Italy
4. Department of Pedagogy, Psychology, Philosophy, University of Cagliari, 09100 Cagliari, Italy
5. Regional Centre for Autism, Abruzzo Region Health System, 67100 L’Aquila, Italy