Funding for this research was provided by:
Direktoratet for Utviklingssamarbeid (TAN-13-0027)
Received: 25 October 2017
Accepted: 18 December 2017
First Online: 2 February 2018
Ethics approval and consent to participate
: This research project was approved by the Uganda National Council for Science and Technology, with reference number ‘A 509’.
: Not applicable
: The authors declare that they have no competing interests.
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