Funding for this research was provided by:
United States Agency for International Development (Cooperative Agreement No. AID-OAA-10-00073 and Cooperative Agreement No. AID-OAA-A-13-00083)
First Online: 13 October 2016
Compliance with Ethical Standards
: Funding was provided for this research through the US Agency for International Development, the Oak Foundation, and an anonymous donor.
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.