Funding for this research was provided by:
United States Agency for International Development (AID-OAA-A-15-00070)
Received: 7 June 2017
Accepted: 7 September 2017
First Online: 13 October 2017
Ethics approval and consent to participate
: The study protocol has been reviewed and approved by the institutional review board (IRB) at the University of California, Los Angeles (UCLA), the National Health Sciences Research Council (NHSRC) in Malawi, and the Excellence in Research Ethics and Science (ERES) Converge IRB in Zambia. Any protocol modifications will be submitted to the IRB committees for review, and participants will be informed, if warranted. Informed consent will be obtained from all study participants prior to enrollment.
: Not applicable.
: The authors declare that they have no competing interests.
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