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Article History

Received: 12 February 2019

Accepted: 7 June 2019

First Online: 11 June 2019

Ethics approval and consent to participate

: Ethical clearance was obtained from University of Gondar ethical review committee. Written permission was obtained from Alefa Takusa health office prior to data collection. Written informed consent from adults was obtained. Assent was also obtained from parents or legal guardian for under 16 years of old participants. Additionally, confidentiality of information was assured.Full names of ethical review committee of University of GondarProfessor Feleke Moges……………………. ChairpersonProfessor Moges Tiruneh…………………… MemberMr. Gashaw Neberu………………………… MemberMr. Niguse Yigzaw…………………………. SecretaryMr. Genanew Agitew………………………. MemberMr. Abiyot Endale………………………….. MemberDr. Misaye Mulate………………………….. MemberDr. Kassahun Denekew…………………….. MemberMr. Wondimenew Kassa…………………… MemberThe Reference Number of approval is: O/V/P/RCS/05/481/2017.

: Not applicable.

: The authors declare that they have no competing interests.