Received: 9 October 2019
Accepted: 19 May 2020
First Online: 26 May 2020
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.
: None of the authors have any conflicts of interest to declare.