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Authors
Girma, Aweke
Woldie, Haile
Mekonnen, Fantahun Ayenew https://orcid.org/0000-0002-9330-0621
Gonete, Kedir Abdela
Sisay, Mekonnen
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Article History
Received: 7 September 2018
Accepted: 23 June 2019
First Online: 29 June 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethical Review Board of University of Gondar and written consent was taken from parents/care takers.
: Not Applicable.
: The authors declare that they have no competing interests.
