1. Service for Neurodevelopmental Disorders and Laboratory of Molecular Psychiatry and Neurogenetics; University “Campus Bio-Medico”; Rome Italy
2. Mafalda Luce Center for Pervasive Developmental Disorders; Milan; Italy
3. Unit of Child and Adolescent Neuropsychiatry; “Gaetano Martino” University Hospital; University of Messina; Messina Italy