Jon Duke, Regenstrief Institute (IMAGE) Indiana University Caption Regenstrief Institute investigator Jon Duke, M.D., M.S. is an Indiana University School of Medicine assistant professor of medicine Credit Regenstrief Institute 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.