Funding for this research was provided by:
National Institute of Environmental Health Sciences (T32HD049311, R01ES013744, R01ES014930, R01ES021357, R24ES028522, P30ES023515, R01ES028811)
Received: 1 May 2019
Accepted: 22 September 2019
First Online: 30 October 2019
Ethics approval and consent to participate
: The PROGRESS study protocols were approved by the institutional review boards (IRBs) of: the Icahn School of Medicine at Mount Sinai (IRB protocol number: 12–00751), Brigham and Women’s Hospital (IRB protocol numbers: 2006-P-001416 and 2006-P-001792) and the Mexican National Institute of Public Health (IRB protocol number: 560). Written consent was obtained from the mothers prior to enrollment in the study as well as before all subsequent visits.
: The authors declare that they have no competing interests.