Yuhua Bao, Ph.D., is Assistant Professor in the Division of Health Policy in the Department of Public Health at Weill Cornell Medical College. Her current interests include studying the mechanisms underlying racial/ethnic and socioeconomic disparities in health care with a special focus on mental health and substance abuse services. Dr. Bao also maintains interests in methodological issues in health services research including modeling service utilization and costs and making causal inferences based on observational data.