Funding for this research was provided by:
Jimma University; faculty of health science (IHRPGD/3019/2019)
Received: 19 September 2019
Accepted: 17 May 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: The study protocol was approved by the institutional review board (IRB) of Jimma University, College of Health Sciences and ethical clearance was obtained with the Reference Number IHRPGD/3019/2019. Permission of data collection was granted with formal letter from chief executive director of Jimma University Medical College (JUMC). The purpose and protocol of this study was explained, participants signed informed written consent.
: Not applicable.
: The authors declare that they have no competing interests.