Received: 23 October 2018
Accepted: 14 February 2019
First Online: 27 February 2019
Ethics approval and consent to participate
: Ethical clearance was obtained from the Institutional Health Research Ethics Review Committee (IHRERC) of the College of Health and Medical Science, Haramaya University. Information on the study was explained to each participant, including the objectives, procedures, potential risks, benefits of the study and their rights. Informed voluntary written and signed consent was obtained from all respondents throughout to the study. Information obtained during this study was kept confidential by excluding names and identifiers in the questionnaires.
: Not applicable.
: The authors declare that they have no competing interests.
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