Received: 24 September 2019
Accepted: 31 December 2019
First Online: 28 January 2020
Ethics approval and consent to participate
: Ethical clearance was obtained from the Ethical Review Committee of the Institute of Public Health, the University of Gondar. An official permission letter was obtained west gojam Zone. Written informed consent was obtained from study participants in their local language after explaining the purpose, potential risks and benefits of the study, along with the right to withdraw from the study at any time. The participants were also assured that the data was confidential.
: Not applicable.
: The authors declare that they have no competing interests.