Text and Data Mining valid from 2020-01-06
Received: 19 June 2019
Accepted: 24 December 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: The study was approved by Institutional Review Board of Bahir Dar University. Permission was obtained in West Gojjam Zone and each woreda administrators. Written consent (fingerprint for those who couldnot read and write) was secured from the study participants. Confidentiality was maintained throughout the study by excluding personal identifiers from the data collection form and keeping the data in a locked board.
: Not applicable.
: The authors declare that they have no competing interests.