Received: 1 December 2019
Accepted: 19 March 2020
First Online: 27 March 2020
Change Date: 25 January 2021
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: Ethical clearance was obtained from Aksum University Research Ethics Review. Written informed consent was taken from each respondent.
: Not applicable.
: We, the authors, declare no conflict of interests.