Received: 19 June 2019
Accepted: 21 February 2020
First Online: 28 February 2020
Ethics approval and consent to participate
: We obtained ethical approval from the Jos University Teaching Hospital’s Health Research Ethical Committee (JUTH/DCS/ADM/127/XIX/5955). All participants were only recruited after giving an informed consent and appending their signature (or thumbprint for the non-literate participants) to the consent form, as approved by the Research Ethical Committee.
: Not applicable.
: The authors declare that they have no competing interests.