Text and Data Mining valid from 2019-08-13
Received: 10 November 2018
Accepted: 29 July 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: Ethical clearance was obtained from the Debre Berhan University ethical review board (IRB) with the reference number of (Ref. No. IHRERCB-569/2018). Permission letter to each study health institution was written and permission letter was taken. Verbal consent was taken from each study participants.
: The manuscript did not contain individuals’ person detailed data in any form.
: The authors declare that they have no competing interests.