Shaun Grannis, Regenstrief Institute (IMAGE) Indiana University Caption Shaun Grannis, M.D., Regenstrief Institute investigator, is an associate professor of family medicine at the Indiana University School of Medicine. Credit Regenstrief Institute Usage Restrictions Photo credit to Regenstrief Institute 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.