Received: 2 April 2020
Accepted: 14 May 2021
First Online: 10 June 2021
: Approval for this study was obtained from the Muhimbili University Institutional Review Board12–06/AEC/Vol.XII/86 and the University of West Florida Institutional Review Board. Prior to enrollment in the study, participants provided a written informed consent. All ethical procedures were conducted and maintained throughout the study period.
: Not applicable
: The authors declare that they have no competing interests.