Received: 23 July 2020
Accepted: 9 December 2020
First Online: 5 February 2021
Ethical approval and consent to participate
: This study was approved by the Health Research Ethics Committee of the Ministry of Health Kano State, Nigeria (Ref: MOH/Off/797/T.I./651). Written informed consent was obtained from all participants before their participation in the study.
: The authors have no conflicts of interest to declare.