Funding for this research was provided by:
National Institute of Child Health and Human Development (RO1HD61115)
Department of Biotechnology, Government of India (Grant #BT/IN/US/01/BD/2010)
Bill and Melinda Gates Foundation
Received: 16 May 2018
Accepted: 20 August 2018
First Online: 4 September 2018
Ethics approval and consent to participate
: All research study procedures were approved by the Institutional Review Boards at the University of California San Diego and the National Institute of Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India. Due to low literacy rates in the population, consent forms were read to participants in full, and then participants were asked to sign their consent.
: Not applicable.
: The authors declare that they have no competing interests.
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