Received: 30 January 2020
Accepted: 10 November 2020
First Online: 19 November 2020
Ethics approval and consent to participate
: The present study was conducted in compliance with the Declaration of Helsinki. Study procedures were fully explained to participants prior to collection of data; after which participants were asked to sign written informed consent for participation in the study and for genetic analysis. This study protocol was approved by the Health Research Ethics Committee (HREC) of Lagos University Teaching Hospital (LUTH) in the University of Lagos (protocol number: ADM/DCST/HREC/APP/80).
: Not applicable.
: The authors declare that they have no competing interests.