Funding for this research was provided by:
Discovery Foundation Rural Fellowship (Grant number 038372)
Received: 9 August 2018
Accepted: 2 July 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: The current study is based on published data and hence does not require ethical approval. This review is part of a thesis that will be submitted to the Faculty of Health Sciences, University of Cape Town, for the award of a PhD in Medicine whose protocol has been granted ethics approval by the University of Cape Town Human Research Ethics committee- IRB0001938 (UCT HREC REF:135/2018). In addition, the results will be published in a peer-reviewed journal. The final report of this review in the form of a scientific paper will be published in a peer-reviewed journal. Findings will also be presented at conferences and submitted to relevant health and policy authorities. We also plan to update the review in the future to monitor any progressive changes on the subject.
: The authors declare that they have no competing interests.