Funding for this research was provided by:
World Health Organization and Global Affairs Canada
Text and Data Mining valid from 2018-09-10
Received: 31 May 2018
Accepted: 28 August 2018
First Online: 10 September 2018
Ethics approval and consent to participate
: The study was approved by the Nigerian National Health Research Ethics Committee, the Ethics Review Committee of the World Health Organization, and the Institutional Review Boards of the University of Maryland Baltimore and the University of Georgia Athens. Written informed consent was obtained from all study participants.
: Not applicable
: The authors declare that they have no competing interests.
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