Funding for this research was provided by:
Received: 11 January 2018
Accepted: 26 April 2018
First Online: 8 May 2018
Ethics approval and consent to participate
: Research permit and ethics review and approval were obtained from the National Commission for Science, Technology and Innovation (NACOSTI/P/17/72297/16999) and Kenyatta University Ethical Review Committee (PKU/628/E60) respectively. Informed verbal consent was sought from all participating respondents.
: The authors declare that they have no competing interests.
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