1 UN Office on Drugs and Crime, Vienna A-1400, Austria; Division of Psychology and Mental Health, University of Manchester, Manchester, UK. Electronic address: aala.el-khani@un.org.
2 Division of Psychology and Mental Health, University of Manchester, Manchester, UK.
3 Department of Social Policy and Intervention, University of Oxford, Oxford, UK; Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.
4 Violence Prevention Unit, WHO, Geneva, Switzerland.
5 UN Office on Drugs and Crime, Vienna A-1400, Austria.