Dr. Jie Chen (IMAGE) University of Maryland Caption Dr. Jie Chen, professor and chair of the Department of Health Policy and Management, and director of UMD Center on Aging. Credit UMD Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.