1. Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital, University of Cape Town, Cape Town, South Africa
2. Neuroscience Institute, University of Cape Town, Cape Town, South Africa
3. Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, United Kingdom
4. Departments of Neurology, Psychiatry and Biobehavioral Sciences, University of California, Los Angeles
5. Department of Bioengineering, University of California, Los Angeles
6. South African Medical Research Council (SAMRC), Unit on Child & Adolescent Health, University of Cape Town, Cape Town, South Africa
7. MRC International Statistics & Epidemiology Group, London School of Hygiene & Tropical Medicine, London, United Kingdom
8. Department of Psychiatry & Mental Health, University of Cape Town, Cape Town, South Africa
9. SA MRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry, Stellenbosch University, Stellenbosch, South Africa
10. SA MRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry & Neuroscience Institute, University of Cape Town, Cape Town, South Africa