Lili Yang, Jessie Xiaoya Ma and Stefano Di Biase. (image) University of California - Los Angeles Health Sciences Share Print E-Mail Caption Lili Yang (center) with first authors Jessie Xiaoya Ma (left) and Stefano Di Biase. Credit Broad Stem Cell Research Center Usage Restrictions None 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.