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Article History
Received: 27 July 2019
Accepted: 11 September 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the Institute of Public Health College of Medicine and Health Sciences, University of Gondar. Written informed consent was obtained from all study participants and confidentiality was kept. All the study subjects had answered voluntarily and confidently the administered pre-tested questionnaires.
: Not applicable.
: The authors declare that they have no competing interests.
