Funding for this research was provided by:
U.S. Department of Health and Human Services (T84HA22125)
Received: 31 October 2018
Accepted: 19 June 2019
First Online: 5 July 2019
Ethics approval and consent to participate
: Ethical Approval of the study was obtained from the University of Botswana institutional review board, and Ministry of Health and Ministry of Education. Each participant consented to participate in the study after the study procedures, risks and benefits were shared with him / her.
: Not applicable.
: The authors declare that they have no competing interests.