Ayelgn, Meseret
Worku, Ligabaw
Ferede, Getachew
Wondimeneh, Yitayih
Article History
Received: 6 August 2019
Accepted: 15 October 2019
First Online: 25 October 2019
Ethics approval and consent to participate
: Ethical clearance was obtained from the research and ethical committee of School of Biomedical and Laboratory Sciences, College of Medicine and Health Science, University of Gondar. The ethical committee deemed that patient written informed consent was not required due to the retrospective nature of the study. An official letter was obtained from Poly Health Center authorities before reviewing the data.
: Not applicable.
: The authors declare that they have no competing interests.