Funding for this research was provided by:
Received: 31 July 2020
Accepted: 21 January 2021
First Online: 4 February 2021
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethics Committee of Imo State University Teaching Hospital, Orlu. Verbal consents as approved by the ethics committee were given by the participants. All authors hereby declare that the study was performed in accordance with international ethical standards.
: Not applicable.
: We declare no competing interests.