Funding for this research was provided by:
Bill & Melinda Gates Foundation (OPP1135005)
Received: 16 August 2017
Accepted: 6 June 2018
First Online: 20 June 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Boards of Jimma University in Ethiopia and the George Washington University in Washington, DC.
: All participants gave verbal consent before the interviews and focus groups. Adolescents below 15 years, the age of consent in Ethiopia, also obtained verbal consent from their parents or guardians prior to their participation in the study.
: The authors declare that they have no competing interests.
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