Received: 8 January 2019
Accepted: 18 May 2019
First Online: 29 May 2019
Ethics approval and consent to participate
: The proposal was reviewed by review board of College of Medicine and health Science, Hawassa University. The purpose of the study was explained to concerned bodies in Kembata Tembaro Zone Health Department and Kechabira district health offices and Hobichaka health Center and permission was obtained from the two health centers and their respective district health offices.
: Not applicable.
: The authors declare that they have no competing interests.