Funding for this research was provided by:
South African Medical Research Council (SIR Grant)
Fogarty International Center of the National Institutes of Health (D43TW010131)
Text and Data Mining valid from 2019-12-01
Received: 18 May 2019
Accepted: 4 November 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: The study is part of a PhD study in Health Sciences (Ethical clearance no. BFC 386/17).
: Not applicable
: The authors declare that they have no competing interests.