Received: 27 August 2019
Accepted: 24 October 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: A letter of ethical clearance was obtained from Haramaya University, College of Health and Medical Sciences and submitted to the HFSUH to obtain permission to conduct the research. All data obtained in the course of the study were kept confidential and used solely for the purpose of the study.
: Not applicable.
: The authors declare that they have no competing interests.