Received: 4 June 2019
Accepted: 14 December 2019
First Online: 7 January 2020
Ethics approval and consent to participate
: Ethical approval was secured from institutional review board of Mekelle University College of health science. After the permission received from MU, the colleges informed using formal letter. Written informed consent was obtained and respondents was notified the right to refuse or terminate at any point of the filling the questionnaire. The information provided by each respondent kept confidential and no personal identifiers were used.
: Not applicable.
: The authors declare that they have no competing interests.