Received: 4 February 2022
Accepted: 5 May 2022
First Online: 13 May 2022
: The study was performed following the Declaration of Helsinki. Ethical clearance was obtained from the Institutional Review Board of Addis Ababa University. All subjects provided written informed consent and confidentiality of the information was maintained throughout the study.
: Not applicable.
: The authors have no conflict of interest.