Mark Ketterer, Henry Ford Health System (IMAGE) Henry Ford Health Caption This is Mark Ketterer, Ph.D., a clinical health psychologist in the Department of Behavioral Health Services at Henry Ford Hospital and the study's lead author. Credit Henry Ford Hospital 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.