David Nerenz, Henry Ford Health System (IMAGE) Henry Ford Health Caption David Nerenz, Ph.D., director emeritus of Henry Ford's Center for Policy and Health Services Research and the study's lead author. Credit Henry Ford Health System Usage Restrictions None License Licensed 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.