Text and Data Mining valid from 2019-09-10
Received: 30 July 2019
Accepted: 3 September 2019
First Online: 10 September 2019
Ethics approval and consent to participate
: This study was ethically cleared from the Institutional Review Board (IRB) of the College of Medicine and Health Sciences, Hawassa University. Official permission was obtained from the study site and written informed consent was obtained from all parents/guardians of the children.
: Not applicable.
: The authors declare that they have no competing interests.