Human Embryonic Stem-cell Derived Cardiomyocytes Maturing at 150 Days (image) Biotechnology and Biological Sciences Research Council Share Print E-Mail Caption Human embryonic stem-cell derived cardiomyocytes maturing at 150 days. Credit Harding, Imperial College London Usage Restrictions Usage for this story only. 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.