1. Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
2. Mood Disorders Program, Tufts Medical Center, Boston, MA, USA
3. Department of Mental Health, Local Health Service, Parma, Italy
4. Department of Biomedical, Biotechnological and Translational Sciences, Unit of Public Health, University of Parma, Parma, Italy
5. Institute of Psychiatry, Kings College London, London, UK
6. Department of Psychiatry and Pharmacology, Tufts University Medical School, Boston, MA, USA