Implanted Cardiac Cell Graft (IMAGE) University of Washington Caption This image shows an implanted graft of cardiac cells derived from human stem cells (green) meshed and beat with primates' heart cells (red). Credit Murry Lab/University of Washington 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.