Received: 14 February 2020
Accepted: 8 November 2020
First Online: 31 January 2021
Ethics approval and consent to participate
: Ethical clearance was obtained from the Ethical Review Board, Institute of Biomedical Science Mekelle University. The respondents were informed about the objective and purpose of the study and written consent was obtained from each respondent. The confidentiality of the information was assured.
: Not applicable.
: We, the authors, declare no conflict of interests.