Article History
Received: 3 February 2021
Accepted: 31 August 2021
First Online: 13 September 2021
Declarations
:
: The investigators received ethical approval of the research from the ethics committee of Jimma University, Institute of Health. Letter of permission was also received from zonal health department and each selected Woreda health office and selected health centers in Jimma zone subsequently. The authors confirm that the study was carried out in accordance with the principles of the Declaration of Helsinki.
: Not applicable.