Received: 18 March 2020
Accepted: 28 September 2020
First Online: 6 October 2020
Ethics approval and consent to participate
: Approval letter to conduct this study was secured from Institutional Review Board of Bahir Dar University (IHB#092/18–04). Formal letter of permission to implement this study was obtained from West Gojjam Zone and each woreda and kebele administrators. Written consent (fingerprint for those who could not read and write) was secured from the study participants. The trial was registered in the Clinical ExternalRef removed (NCT03627156).
: Not applicable.
: The authors declare that they have no competing interests.