Received: 16 September 2017
Accepted: 17 April 2018
First Online: 23 April 2018
Ethics approval and consent to participate
: Ethical clearance was obtained from the Institutional Review Board of Ambo University. Following the approval by IRB, official letter of co-operation was written to the concerned bodies from the College of medicine and Health Sciences research office, about the purpose of the study to facilitate the support and commitment of responsible bodies. Written consent from each study subjects was taken. No personal identifiers were used on data collection forms and confidentiality was maintained.
: The authors declare that they have no competing interests.
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