David L. DeMets, Ph.D., Max Halperin Professor of Biostatistics--and former Chair of the Department of Biostatistics and Medical Informatics--is a newly elected member of the Institute of Medicine (IOM), a national resource for independent, scientifically informed analysis and recommendations on health issues facing the U.S. population. Election to the IOM is considered one of the highest honors in the fields of health and medicine. It recognizes individuals who have demonstrated outstanding professional achievement and commitment to service. The Institute of Medicine is unique in its structure as both an honorific membership and an advisory organization. This is a very well deserved recognition of Dr. Demet's many years of research and service in many areas of biomedical science, but especially of his seminal contributions to the area of clinical trials methodology. Congratulations, Dave!