Received: 1 February 2019
Accepted: 9 May 2019
First Online: 17 May 2019
Ethics approval and consent to participate
: All participants gave a signed informed consent to participate. This study received the ethical approval of the Kintampo Health Research Centre, Kintampo, Brong Ahafo Region, Ghana.
: Not applicable.
: The authors declare that they have no competing interests.
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