1. Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
2. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
3. Department of Health Law Policy and Management, Boston University School of Public Health, Boston, Massachusetts, USA
4. Department of Psychiatry, Depression Clinical Research Program, Massachusetts General Hospital, Boston, Massachusetts, USA
5. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA