Dagnew, Baye http://orcid.org/0000-0002-2397-5930
Andualem, Zewudu http://orcid.org/0000-0002-4731-1696
Dagne, Henok http://orcid.org/0000-0001-7161-0904
Article History
Received: 1 January 2020
Accepted: 1 September 2020
First Online: 5 September 2020
Ethics approval and consent to participate
: Ethical clearance letter was gained from the ethical committee of Department of Environmental and Occupational Health and Safety, University of Gondar. Before delivering the questionnaire, written consent was obtained from every participant. No names and possible identifying issues written on the questionnaire to secure the data confidential.
: Not applicable
: No conflicts of interest are raised by authors.