1 National Centre for Suicide Research and Prevention of Mental Ill-Health, Karolinska Institutet, Stockholm, Sweden. Electronic address: danuta.wasserman@ki.se.
2 National Centre for Suicide Research and Prevention of Mental Ill-Health, Karolinska Institutet, Stockholm, Sweden.
3 Division of Child and Adolescent Psychiatry and Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.
4 Department of Medicine and Health Science, University of Molise, Campobasso, Italy; National Institute for Health, Migration and Poverty, Rome, Italy.
5 Division of Child and Adolescent Psychiatry and Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA; Department of Medicine and Health Science, University of Molise, Campobasso, Italy.