Greg Sachs, Regenstrief Institute (image) Indiana University Share Print E-Mail Caption Regenstrief Institute investigator Greg Sachs, M.D. is professor of medicine and director of the Division of General Internal Medicine and Geriatrics at Indiana University School of Medicine. Credit Regenstrief Institute Usage Restrictions Photo credit to Regenstrief Institute Share Print E-Mail 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.