Funding for this research was provided by:
Bill and Melinda Gates Foundation (49276)
National Institute of General Medical Sciences (5U54GM088491)
Article History
Received: 16 March 2017
Accepted: 29 November 2017
First Online: 15 December 2017
Ethics approval and consent to participate
: We have received written approval to use Demographic and Health Survey (DHS) data for this study from the DHS administration, via their online application system.
: Not applicable.
: The authors declare that they have no competing interests.
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