Received: 6 December 2017
Accepted: 31 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: The study was approved by the ethical committee of the Institute of medical & health sciences, Debre Berhan University (reference number DBU/CHSEC/057/2017). Permission was secured from the college of medicine in which the research was conducted. All participants in the study were informed that participation is voluntary and verbal informed consent was taken. Strict confidentiality was ensured: a code number was used instead of the participant’s name, or identification number. There has not been and will not be dissemination of any information to anyone not directly involved in the study. The data was and will be used only for research purpose.
: Not applicable.
: The authors declare that they have no competing interests.