1 Division of Neuropsychiatry, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, Western Cape, South Africa james.burger@uct.ac.za.
2 HIV Mental Health Research Group, Neuroscience Institute, University of Cape Town, Cape Town, South Africa.
3 Department of Psychiatry, School of Clinical Medicine, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.
4 Alan J Flisher Centre for Public Mental Health, Cape Town, South Africa.
5 Wits Sport and Health (WiSH), School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.