1. Department of Clinical and Experimental Medicine, University of Pisa, Pisa
2. Department of Psychiatry, Local Health Unit n. 2, Terni
3. Department of Psychiatry, North-Western Tuscany Region, NHS, Local Health Unit, Cecina-LI
4. Azienda Ospedaliero-Universitaria Pisana
5. Institute of Behavioral Science ‘G. De Lisio’, Pisa, Italy