Wubneh, Chalachew Adugna http://orcid.org/0000-0001-5804-344X
Endalamaw, Aklilu
Tebeje, Nigusie Birhan
Article History
Received: 11 June 2019
Accepted: 23 October 2019
First Online: 7 November 2019
Ethics approval and consent to participate
: Ethical clearance was obtained from University of Gondar ethical review committee. Consent was not applicable because we use recorded data.
: Not applicable
: The authors declared no competing interests.