Funding for this research was provided by:
University of Gondar (133/15)
Text and Data Mining valid from 2018-04-19
Received: 21 August 2017
Accepted: 2 April 2018
First Online: 19 April 2018
Ethics approval and consent to participate
: Ethical clearance was obtained from the Institutional Review Board of the University of Gondar. Permission was obtained from Debre Birhan Health Office and respective Kebeles. Informed written consent was obtained from each study respondent. Parental guidance letter was obtained for those participants having an age of 18 or less. Each respondent was informed about the objective of the study. They were also informed that all data obtained from them would be kept confidential.
: The authors declare that they have no competing interests.
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