Funding for this research was provided by:
The study was funded by the South African Medical Research Council (M050451)
Received: 29 January 2019
Accepted: 20 September 2019
First Online: 24 October 2019
Ethics approval and consent to participate
: Ethical approval (reference number: M050451) for the study was obtained from the University of the Witwatersrand Human Research Ethics Committee. A verbal and written consent was obtained before the commencement of the interviews.
: Not applicable.
: The authors declare that they have no competing interests.