Foster, Diana Greene: - Diana Greene Foster is a professor at the University of California, San Francisco (UCSF) in the Department of Obstetrics, Gynecology, and Reproductive Sciences and director of research at Advancing New Standards in Reproductive Health (ANSIRH). An internationally recognized expert on women's experiences with contraception and abortion, she is the principal investigator of the Turnaway Study. She has a bachelor's of science from the University of California, Berkeley, and a doctorate from Princeton University. She lives with her husband and two children in the San Francisco Bay Area.