Lu Ann Aday, Ph.D., (editor) is the Lorne Bain Distinguished Professor in Public Health and Medicine at the University of Texas School of Public Health. Her principal research interests have focused on equity of access to health and health care for vulnerable populations. She is a member of the editorial advisory board of the Association of University Professionals in Health Administration (AUPHA) and Health Administration Press. She is the author of At Risk in America (2nd ed), Designing and Conducting Health Surveys (2nd ed), and Evaluating the US Health Care System (2nd ed).