1. Department of Mental Health and Pathological Addiction, Child and Adolescent Neuropsychiatry Service , Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia , Italy
2. Chair of Psychiatry, Faculty of Biomedical Sciences, University of Italian Switzerland , Lugano , Switzerland
3. Cantonal Sociopsychiatric Organisation , Mendrisio , Switzerland