Hailu, Gedamu Gebreamlak http://orcid.org/0000-0002-8576-7344
Ayele, Esubalew Tesfahun
Article History
Received: 4 December 2019
Accepted: 28 December 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: Ethical clearance was obtained from the Institutional Review Board of Debre Berhan University, Institute of Medicine and Health Science, Reference number–DBUMF 053–009. Verbal consent was obtained from the schools’ principals, children were asked verbally and a written informed consent was obtained from parents/guardians on behalf of all child participants. Names of participants were not taken and confidentiality of data was assured throughout the study.
: Not applicable.
: The authors declare that they have no competing interests.