Received: 8 June 2019
Accepted: 26 July 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the institutional review board (IRB) of Debre Markos University, college of medicine and health sciences (Ref. No:-S/N/206/15/2017) and approved the procedure of verbal consent. Letter of cooperation was obtained from each health institutions medical director of the hospital and head of the respective health center.Each study participants were asked by explaining the objective of the study and its significance, and verbal/unsigned informed consent were obtained after clearing up verbal version of a consent form (information sheet) and subjects give their verbal consent in place of written consent to participate. Confidentiality was maintained anonymously and not communicated for other purposes.
: Not applicable.
: The authors declare that they have no competing interests.