Funding for this research was provided by:
Royal College of Surgeons of England (International Project Grant 2018)
Received: 23 September 2019
Accepted: 13 March 2020
First Online: 20 March 2020
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the Health Research Ethics Committee of the College of Medicine, University of Nigeria Ituku-Ozalla.
: Not applicable
: The authors declare that they have no competing interests.