Wanzhu Tu, Ph.D., Regenstrief Institute (IMAGE) Indiana University Caption Regenstrief Institute investigator Wanzhu Tu, Ph.D. is an Indiana University Center for Aging Research scientist and a professor of biostatistics at Indiana University School 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.