Dr. Riley is executive director of The Tennessee Center for Bioethics & Culture and serves on the ethics committee of a Nashville-area hospital. Board-certified in internal medicine, her writing and lecture topics include medical ethics, organ transplantation ethics, stem cell research, genetics, end-of-life issues, and assisted reproductive technologies. With Scott B. Rae, she co-authored Outside the Womb: Moral Guidance for Assisted Reproduction, and with C. Ben Mitchell, Christian Bioethics.