Paolo Vignali, Ph.D. (IMAGE) University of Pittsburgh Caption Paolo Vignali, Ph.D., a student in Pitt’s Medical Scientist Training Program Credit Paolo Vignali Usage Restrictions For use with embargoed release 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.