Diana Greene Foster is a Professor at the University of California, San Francisco and Director of Research at the UCSF ANSIRH Program. She is a demographer who uses quantitative models and analyses to evaluate the effectiveness of family planning policies and the effect of unintended pregnancy on women's lives. She is currently leading the Turnaway Study, a nationwide longitudinal prospective study of the health and well-being of women who seek abortion including both women who do and do not receive the abortion. She also directs the Global Turnaway Studies which examine the experiences of women denied abortion care in Bangladesh, Colombia, Nepal, South Africa and Tunisia. Dr. Foster received PhD in Demography and Public Policy from Princeton University.