Funding for this research was provided by:
Fogarty International Center (D4TW009573)
Article History
Received: 9 June 2018
Accepted: 9 October 2019
First Online: 29 October 2019
Ethics approval and consent to participate
: All recruited participants were informed about the study details prior to enrollment and verbal consent was obtained from each study participant prior to enrollment in the study. Ethical approval was obtained from the Muhimbili University of Health and Allied Science institutional review board approval number MU/PGS/SAEC/Vol.XVI/.
: Not applicable.
: The authors declare that they have no competing interests.