Funding for this research was provided by:
Department for International Development, UK Government (PO 40084868)
Text and Data Mining valid from 2019-06-17
Received: 16 April 2018
Accepted: 6 June 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: Ethical approval for the research was obtained from the Human Sciences Research Council South Africa (REC 3/17/06/15). All participants provided informed signed consent.
: Not applicable.
: The authors declare that they have no competing interests.