Funding for this research was provided by:
Department for International Development, UK Government
International Development Research Centre, Canada
Text and Data Mining valid from 2018-07-09
Received: 26 October 2017
Accepted: 3 July 2018
First Online: 9 July 2018
Ethics approval and consent to participate
: Ethical clearance was obtained from the Ethics Committee of London School of Hygiene and Tropical Medicine.
: Not Applicable.
: The authors declare that they have no competing interests.
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