1. Department of Education, Languages, Interculture, Literatures and Psychology (FORLILPSI), University of Florence, Florence, Italy
2. Italian Association of Neuro and Psychomotricity Therapists of Developmental Age (AITNE), Rome, Italy
3. Department of Educational Science (DISFor), University of Genoa, Genoa, Italy
4. Department of Epidemiology of the Lazio Regional Health Service, ASL Roma 1, Rome, Italy