Funding for this research was provided by:
United States Agency for International Development (AIDOAA-L-14-00004)
Received: 5 December 2019
Accepted: 9 February 2020
First Online: 18 February 2020
Ethics approval and consent to participate
: No primary data were collected for this study; therefore, no further institutional review board approval was sought.
: Not applicable.
: The authors declare that they have no competing interests.