6 Section of Hygiene, Institute of Public Health, Universita' Cattolica del Sacro Cuore, Fondazione Policlinico "Agostino Gemelli" IRCCS, Rome, Italy.
7 Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti, Chieti, Italy.
8 Psychiatry Unit, Department of Medical Sciences, University of Foggia, Foggia, Italy.
9 Bipolar Disorders Unit, Institute of Neuroscience, Hospital Clínic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain.
10 Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Rome, Italy, and Department of Human Sciences and Quality of Life Promotion, San Raffaele University, Rome, Italy.
11 Barnet, Enfield and Haringey Mental Health NHS Trust, St.Ann's Hospital, St.Ann's Road, London, N15 3 TH, UK.
12 Mental Health Department, ASL Roma 1, Rome, Italy.
13 Dipartimento di Biologia, Università di Pisa, Pisa, Italy.
14 Department of Biomedical and NeuroMotor Sciences, University of Bologna, Viale Carlo Pepoli 5, 40123, Bologna, Italy. [email protected].