Article History
Received: 3 November 2017
Accepted: 3 December 2018
First Online: 12 December 2018
Ethics approval and consent to participate
: The Ethical Review Board of the Navrongo Health Research Centre, Ghana (NHRCIRB217) and the Human Research Ethics Committee of the relevant university (ETH16–0263) approved for the conduct of the study. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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