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Maternal-Fetal Medicine

Chemicals in Our Bodies 2 (CiOB2)

Principal Investigators: Tracey Woodruff, PhD, MPH; Rachel Morello-Frosch, PhD, MPH; Marya Zlatnik, MD; Naomi Stotland, MD

To learn what chemicals are found in the bodies of pregnant women and in their newborns, and assess whether stress impacts sensitivity to chemicals.


Second Trimester at the time of interview, low risk pregnancy, delivering newborn at San Francisco General Hospital or Moffitt-Long Hospital (UCSF Parnassus)/Betty Irene Moore Women’s Hospital (UCSF Mission Bay).

Study component:

One hour in person interview and collection of a urine sample and blood sample during the second trimester. At the time of delivery, maternal blood, placenta sample, and umbilical cord blood will be collected with routine medical procedures.


$25 gift card after second trimester interview and $5 gift card at delivery.

Interested to learn more?

Please email Priscila Valdez Lopez or Janet Pan for more information or call (415) 580-0352.

To learn more about our organization - Program on Reproductive Health and the Environment, please visit