Article History
Received: 24 June 2019
Accepted: 27 February 2020
First Online: 10 March 2020
Ethics approval and consent to participate
: The Health Research Development Committee (HRDC) of the Botswana Ministry of Health and Wellness(HPDME:13/18/1) and Stellenbosch University Health Research Ethics Committee (X19/01/001) approved the current study. The study protocol of the primary study was approved by HRDC and the Princess Marina Research and Ethics Committee. Participating patients provided written, informed consent in the primary study. Authors did not require any administrative permissions to access the data of the primary study.
: Not applicable.
: The authors declare that they have no competing interests.