Received: 4 August 2020
Accepted: 4 February 2021
First Online: 19 February 2021
Ethics approval and consent to participate
: Ethics approval was obtained from ethics and research of the Enugu State University Teaching Hospital (ESUTH/C-MAC/RA/034/VOL.11/176) and the patients’ parents gave informed written consent.
: Not applicable.
: The author declare there is no competing interest.