Funding for this research was provided by:
National Institutes of Health (KL2TR000446)
National Institute of Mental Health (K01MH107255-01)
Wellcome Trust (058893/A/99A, 085477/Z08/Z, 069683/Z/02/Z)
School of Public Health, Faculty of Health Sciences, University of the Witwatersrand
Received: 26 October 2016
Accepted: 18 August 2017
First Online: 30 August 2017
Ethics approval and consent to participate
: This study was approved by the Vanderbilt Institutional Review Board (IRB # 140646), the University of Witwatersrand Institutional Review Board (IRB #140547), and the Mpumalanga Department of Health’s Research Ethics Committee. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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