Received: 11 June 2020
Accepted: 25 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: Ethical approval was obtained from Health Research Ethics Committee of the Lagos University Teaching Hospital (Approval number: ADM/DCST/HREC/APP/173). Informed consent (in writing) was duly obtained from participants.
: Not applicable.
: The authors declare that they have no competing interests.