Received: 17 March 2020
Accepted: 27 August 2020
First Online: 1 September 2020
Ethics approval and consent to participate
: Ethical approval for this study was obtained from the Health Research Committee of the University of Nigeria Teaching Hospital, Enugu State, Nigeria. The objectives of the study were clearly explained in the informed consent form and endorsed by each participant.
: Not applicable.
: The authors declare that they have no competing interests.