Lyle Armstrong, Ph.D. (IMAGE) AlphaMed Press Caption Lyle Armstrong, Ph.D., professor of stem cell sciences at Newcastle University, UK and corresponding author on the study. Credit AlphaMed Press 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.