Funding for this research was provided by:
National Institutes of Health (R01ES021446, R01ES007821)
National Institute of Environmental Health Sciences (P01ES022844, P20ES018171)
Received: 27 December 2018
Accepted: 18 March 2019
First Online: 29 March 2019
Ethics approval and consent to participate
: Research protocols were approved by the Institutional Review Board at University of Michigan and the University of Indiana, and the Research, Biosafety and Ethics in Research at the Mexico National Institute of Public Health. Prior to enrollment, informed consent from mothers and informed assent from offspring were obtained.
: Not applicable.
: The authors declare that they have no competing interests.
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