Received: 5 December 2017
Accepted: 27 August 2018
First Online: 19 September 2018
Ethics approval and consent to participate
: Ethical clearance and permission was obtained from Addis Ababa University Institutional Research Review Board.Since the study subjects were younger than 18 years, written assent was taken from study subjects and written consent was taken from guardians or nongovernmental organizations (NGO) who were responsible to look after them. To compensate the study participants’ time, the researchers provided them 15 birr (USD 0.5) per person. Participation in the study was voluntary and information that was collected from the study subjects assured confidentiality.
: Not applicable.
: The authors declare that they have no competing interests.
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