1. South African Medical Research Council/Stellenbosch University Genomics of Brain Disorders Research Unit, Faculty of Medicine & Health Sciences Stellenbosch University Cape Town South Africa
2. Division of Molecular Biology and Human Genetics, Faculty of Medicine & Health Sciences Stellenbosch University Cape Town South Africa
3. Department of Psychiatry, Faculty of Medicine & Health Sciences Stellenbosch University Cape Town South Africa
4. Department of Psychology University of Konstanz Konstanz Germany
5. Clinical Psychology & Psychotherapy Medical School Hamburg Hamburg Germany
6. Department of Psychology University of Cape Town Cape Town South Africa