Funding for this research was provided by:
The USAID and Project SEARCH, Task Order No. 2, is funded by the US Agency for International Development (GHH-I-00-0700,032-00)
Text and Data Mining valid from 2019-01-03
Received: 22 June 2018
Accepted: 21 December 2018
First Online: 3 January 2019
Ethics approval and consent to participate
: All participants provided written informed consent. The study received ethical approval from the Johns Hopkins Bloomberg School of Public Health Institutional Review Board and the Ethics Committee for Health Research (Comité d’éthique pour la recherche en santé, CERS) of Burkina Faso.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.