Funding for this research was provided by:
Received: 22 February 2018
Accepted: 14 November 2018
First Online: 28 November 2018
Ethics approval and consent to participate
: The study has received ethical clearance from the Biomedical Research Ethics Committee, University of KwaZulu-Natal (ethical clearance number BFC 386/17). The committee is registered with the South African National Health Research Ethics Council (REC-290408-009). Informed consent will be obtained from all participants prior to any form or part of data collection.
: Not applicable
: The authors declare that they have no competing interests.
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