Funding for this research was provided by:
South African National Research Foundation (GUN 109312)
South African Medical Research Council (RCDI, RCDI 57009)
Article History
Received: 28 October 2019
Accepted: 30 January 2020
First Online: 7 February 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: DMT is an Associate Editor of AIDS Research and Therapy. NDM and POB declare that they have no competing interests.