Matthew Nictora, Ph.D. (IMAGE) University of Pittsburgh Caption Matthew Nictora, Ph.D., assistant professor of surgery and immunology at the University of Pittsburgh Thomas E. Starzl Transplantation Institute and associate director of the Center for Evolutionary Biology and Medicine. Credit Matthew Nicotra Usage Restrictions Only to be used in relation to this study. License Original 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.