1 Program on Reproductive Health and the Environment, Environmental Research and Translation for Health (EaRTH) Center, University of California San Francisco, San Francisco, California, USA.
2 Division of Maternal Fetal Medicine and Program in Reproductive Health & the Environment, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco (UCSF), San Francisco, California, USA.
3 Obstetrix Medical Group of California, APC, San Jose, California, USA.
4 Department of Obstetrics and Gynecology, Johns Hopkins Health System, Washington, District of Columbia, USA.