1. Child Psychiatry Unit, Dept. of Neuroscience; I.R.C.C.S. Children Hospital Bambino Gesù; Rome Italy
2. Department of Psychiatry; Harvard Medical School; Boston Massachusetts
3. International Consortium for Mood & Psychotic Disorders Research; Mailman Research Center, McLean Hospital; Belmont Massachusetts
4. Lucio Bini Mood Disorder Center; Rome Italy
5. NESMOS Department; Sant'Andrea Hospital, Sapienza University of Rome; Rome Italy
6. Lucio Bini Mood Disorder Center; Cagliari Sardinia Italy