Diana Greene Foster, PhD, is a demographer and professor at the University of California, San Francisco. She led the United States 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 is leading a study of the health, legal, and economic consequences of the end of Roe in the United States and a Turnaway Study in Nepal. She was named a 2023 MacArthur Fellow and is the author of over 120 scientific papers as well as the 2020 book, The Turnaway Study: Ten Years, a Thousand Women and the Consequences of Having – or Being Denied – an Abortion.