Funding for this research was provided by:
VLIR-UOS PhD Scholarship (2014-2018)
Received: 29 January 2018
Accepted: 23 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: We obtained ethical approval from the Kenya Medical Research Institute Scientific and Ethics Review Unit (#3022). Written informed consent was obtained from all the participants.
: Not applicable
: The authors declare that they have no competing interests.
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