1. Division of Nursing and Midwifery, School of Health and Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, Observatory 7925, South Africa,
2. Department of Social Work, Huguenot College, Wellington, South Africa
3. Provincial Government of the Western Cape, South Africa
4. Division of Child and Adolescent Psychiatry and Adolescent Health Research Institute, University of Cape Town, and Research Centre for Health Promotion, University of Bergen, Norway